Home / 15,520.62-21,417.52-8,714.14

Finding the Fourth Proportional to 15,520.62, 21,417.52 and 8,714.14

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Solution

The fourth proportional to 15,520.62, 21,417.52 and 8,714.14 is: 12,024.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,520.62 : 21,417.52 = 8,714.14 : x
  2. Step 2: Convert to fraction form
    15,520.62/21,417.52 = 8,714.14/x
  3. Step 3: Cross multiply
    15,520.62x = 21,417.52 × 8,714.14
  4. Step 4: Simplify right side
    15,520.62x = 186,635,267.73
  5. Step 5: Solve for x
    x = 186,635,267.73/15,520.62
  6. Step 6: Final answer
    x = 12,024.99

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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.