Home / 13,013.38-19,520.08-10,432.72

Finding the Fourth Proportional to 13,013.38, 19,520.08 and 10,432.72

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Solution

The fourth proportional to 13,013.38, 19,520.08 and 10,432.72 is: 15,649.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.38 : 19,520.08 = 10,432.72 : x
  2. Step 2: Convert to fraction form
    13,013.38/19,520.08 = 10,432.72/x
  3. Step 3: Cross multiply
    13,013.38x = 19,520.08 × 10,432.72
  4. Step 4: Simplify right side
    13,013.38x = 203,647,529.02
  5. Step 5: Solve for x
    x = 203,647,529.02/13,013.38
  6. Step 6: Final answer
    x = 15,649.09

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.