Home / 15,488.43-21,374.10-8,414.88

Finding the Fourth Proportional to 15,488.43, 21,374.10 and 8,414.88

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Solution

The fourth proportional to 15,488.43, 21,374.10 and 8,414.88 is: 11,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,488.43 : 21,374.10 = 8,414.88 : x
  2. Step 2: Convert to fraction form
    15,488.43/21,374.10 = 8,414.88/x
  3. Step 3: Cross multiply
    15,488.43x = 21,374.10 × 8,414.88
  4. Step 4: Simplify right side
    15,488.43x = 179,860,486.61
  5. Step 5: Solve for x
    x = 179,860,486.61/15,488.43
  6. Step 6: Final answer
    x = 11,612.57

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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.