Home / 15,472.98-21,353.16-8,399.85

Finding the Fourth Proportional to 15,472.98, 21,353.16 and 8,399.85

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Solution

The fourth proportional to 15,472.98, 21,353.16 and 8,399.85 is: 11,592.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,472.98 : 21,353.16 = 8,399.85 : x
  2. Step 2: Convert to fraction form
    15,472.98/21,353.16 = 8,399.85/x
  3. Step 3: Cross multiply
    15,472.98x = 21,353.16 × 8,399.85
  4. Step 4: Simplify right side
    15,472.98x = 179,363,341.03
  5. Step 5: Solve for x
    x = 179,363,341.03/15,472.98
  6. Step 6: Final answer
    x = 11,592.04

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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.