Home / 15,553.72-21,463.22-8,479.96

Finding the Fourth Proportional to 15,553.72, 21,463.22 and 8,479.96

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Solution

The fourth proportional to 15,553.72, 21,463.22 and 8,479.96 is: 11,701.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.72 : 21,463.22 = 8,479.96 : x
  2. Step 2: Convert to fraction form
    15,553.72/21,463.22 = 8,479.96/x
  3. Step 3: Cross multiply
    15,553.72x = 21,463.22 × 8,479.96
  4. Step 4: Simplify right side
    15,553.72x = 182,007,247.07
  5. Step 5: Solve for x
    x = 182,007,247.07/15,553.72
  6. Step 6: Final answer
    x = 11,701.85

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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.