Home / 10,645.28-14,691.12-6,167.60

Finding the Fourth Proportional to 10,645.28, 14,691.12 and 6,167.60

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Solution

The fourth proportional to 10,645.28, 14,691.12 and 6,167.60 is: 8,511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.28 : 14,691.12 = 6,167.60 : x
  2. Step 2: Convert to fraction form
    10,645.28/14,691.12 = 6,167.60/x
  3. Step 3: Cross multiply
    10,645.28x = 14,691.12 × 6,167.60
  4. Step 4: Simplify right side
    10,645.28x = 90,608,951.71
  5. Step 5: Solve for x
    x = 90,608,951.71/10,645.28
  6. Step 6: Final answer
    x = 8,511.66

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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.