Home / 12,432.77-18,649.15-11,892.85

Finding the Fourth Proportional to 12,432.77, 18,649.15 and 11,892.85

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Solution

The fourth proportional to 12,432.77, 18,649.15 and 11,892.85 is: 17,839.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.77 : 18,649.15 = 11,892.85 : x
  2. Step 2: Convert to fraction form
    12,432.77/18,649.15 = 11,892.85/x
  3. Step 3: Cross multiply
    12,432.77x = 18,649.15 × 11,892.85
  4. Step 4: Simplify right side
    12,432.77x = 221,791,639.02
  5. Step 5: Solve for x
    x = 221,791,639.02/12,432.77
  6. Step 6: Final answer
    x = 17,839.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.