Home / 11,667.60-16,082.40-7,889.52

Finding the Fourth Proportional to 11,667.60, 16,082.40 and 7,889.52

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Solution

The fourth proportional to 11,667.60, 16,082.40 and 7,889.52 is: 10,874.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,667.60 : 16,082.40 = 7,889.52 : x
  2. Step 2: Convert to fraction form
    11,667.60/16,082.40 = 7,889.52/x
  3. Step 3: Cross multiply
    11,667.60x = 16,082.40 × 7,889.52
  4. Step 4: Simplify right side
    11,667.60x = 126,882,416.45
  5. Step 5: Solve for x
    x = 126,882,416.45/11,667.60
  6. Step 6: Final answer
    x = 10,874.77

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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.