Home / 15,590.10-21,521.42-9,932.61

Finding the Fourth Proportional to 15,590.10, 21,521.42 and 9,932.61

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Solution

The fourth proportional to 15,590.10, 21,521.42 and 9,932.61 is: 13,711.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,590.10 : 21,521.42 = 9,932.61 : x
  2. Step 2: Convert to fraction form
    15,590.10/21,521.42 = 9,932.61/x
  3. Step 3: Cross multiply
    15,590.10x = 21,521.42 × 9,932.61
  4. Step 4: Simplify right side
    15,590.10x = 213,763,714.24
  5. Step 5: Solve for x
    x = 213,763,714.24/15,590.10
  6. Step 6: Final answer
    x = 13,711.50

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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.