Home / 11,540.68-15,904.02-8,222.92

Finding the Fourth Proportional to 11,540.68, 15,904.02 and 8,222.92

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Solution

The fourth proportional to 11,540.68, 15,904.02 and 8,222.92 is: 11,331.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,540.68 : 15,904.02 = 8,222.92 : x
  2. Step 2: Convert to fraction form
    11,540.68/15,904.02 = 8,222.92/x
  3. Step 3: Cross multiply
    11,540.68x = 15,904.02 × 8,222.92
  4. Step 4: Simplify right side
    11,540.68x = 130,777,484.14
  5. Step 5: Solve for x
    x = 130,777,484.14/11,540.68
  6. Step 6: Final answer
    x = 11,331.87

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Double scale
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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.