Home / 15,553.44-21,463.68-8,479.80

Finding the Fourth Proportional to 15,553.44, 21,463.68 and 8,479.80

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Solution

The fourth proportional to 15,553.44, 21,463.68 and 8,479.80 is: 11,702.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.44 : 21,463.68 = 8,479.80 : x
  2. Step 2: Convert to fraction form
    15,553.44/21,463.68 = 8,479.80/x
  3. Step 3: Cross multiply
    15,553.44x = 21,463.68 × 8,479.80
  4. Step 4: Simplify right side
    15,553.44x = 182,007,713.66
  5. Step 5: Solve for x
    x = 182,007,713.66/15,553.44
  6. Step 6: Final answer
    x = 11,702.09

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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.