Home / 15,553.48-21,463.62-8,479.96

Finding the Fourth Proportional to 15,553.48, 21,463.62 and 8,479.96

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Solution

The fourth proportional to 15,553.48, 21,463.62 and 8,479.96 is: 11,702.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.48 : 21,463.62 = 8,479.96 : x
  2. Step 2: Convert to fraction form
    15,553.48/21,463.62 = 8,479.96/x
  3. Step 3: Cross multiply
    15,553.48x = 21,463.62 × 8,479.96
  4. Step 4: Simplify right side
    15,553.48x = 182,010,639.06
  5. Step 5: Solve for x
    x = 182,010,639.06/15,553.48
  6. Step 6: Final answer
    x = 11,702.25

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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.