Home / 10,642.20-14,691.44-6,665.52

Finding the Fourth Proportional to 10,642.20, 14,691.44 and 6,665.52

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Solution

The fourth proportional to 10,642.20, 14,691.44 and 6,665.52 is: 9,201.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.20 : 14,691.44 = 6,665.52 : x
  2. Step 2: Convert to fraction form
    10,642.20/14,691.44 = 6,665.52/x
  3. Step 3: Cross multiply
    10,642.20x = 14,691.44 × 6,665.52
  4. Step 4: Simplify right side
    10,642.20x = 97,926,087.15
  5. Step 5: Solve for x
    x = 97,926,087.15/10,642.20
  6. Step 6: Final answer
    x = 9,201.68

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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.