Home / 11,666.76-16,081.35-7,888.74

Finding the Fourth Proportional to 11,666.76, 16,081.35 and 7,888.74

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Solution

The fourth proportional to 11,666.76, 16,081.35 and 7,888.74 is: 10,873.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,666.76 : 16,081.35 = 7,888.74 : x
  2. Step 2: Convert to fraction form
    11,666.76/16,081.35 = 7,888.74/x
  3. Step 3: Cross multiply
    11,666.76x = 16,081.35 × 7,888.74
  4. Step 4: Simplify right side
    11,666.76x = 126,861,589.00
  5. Step 5: Solve for x
    x = 126,861,589.00/11,666.76
  6. Step 6: Final answer
    x = 10,873.76

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Find fourth proportional to 5,833.38, 8,040.68 and 3,944.37
Half scale
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Double scale
Find fourth proportional to 11,667.76, 16,082.73 and 7,889.74
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.