Home / 15,553.85-21,474.87-11,962.45

Finding the Fourth Proportional to 15,553.85, 21,474.87 and 11,962.45

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Solution

The fourth proportional to 15,553.85, 21,474.87 and 11,962.45 is: 16,516.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.85 : 21,474.87 = 11,962.45 : x
  2. Step 2: Convert to fraction form
    15,553.85/21,474.87 = 11,962.45/x
  3. Step 3: Cross multiply
    15,553.85x = 21,474.87 × 11,962.45
  4. Step 4: Simplify right side
    15,553.85x = 256,891,951.26
  5. Step 5: Solve for x
    x = 256,891,951.26/15,553.85
  6. Step 6: Final answer
    x = 16,516.29

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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.