Home / 12,265.30-16,929.84-7,229.17

Finding the Fourth Proportional to 12,265.30, 16,929.84 and 7,229.17

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Solution

The fourth proportional to 12,265.30, 16,929.84 and 7,229.17 is: 9,978.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,265.30 : 16,929.84 = 7,229.17 : x
  2. Step 2: Convert to fraction form
    12,265.30/16,929.84 = 7,229.17/x
  3. Step 3: Cross multiply
    12,265.30x = 16,929.84 × 7,229.17
  4. Step 4: Simplify right side
    12,265.30x = 122,388,691.43
  5. Step 5: Solve for x
    x = 122,388,691.43/12,265.30
  6. Step 6: Final answer
    x = 9,978.45

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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.