Home / 15,590.80-21,521.46-9,624.88

Finding the Fourth Proportional to 15,590.80, 21,521.46 and 9,624.88

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Solution

The fourth proportional to 15,590.80, 21,521.46 and 9,624.88 is: 13,286.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,590.80 : 21,521.46 = 9,624.88 : x
  2. Step 2: Convert to fraction form
    15,590.80/21,521.46 = 9,624.88/x
  3. Step 3: Cross multiply
    15,590.80x = 21,521.46 × 9,624.88
  4. Step 4: Simplify right side
    15,590.80x = 207,141,469.92
  5. Step 5: Solve for x
    x = 207,141,469.92/15,590.80
  6. Step 6: Final answer
    x = 13,286.13

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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.