Home / 10,425.88-15,638.82-3,505.24

Finding the Fourth Proportional to 10,425.88, 15,638.82 and 3,505.24

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Solution

The fourth proportional to 10,425.88, 15,638.82 and 3,505.24 is: 5,257.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,425.88 : 15,638.82 = 3,505.24 : x
  2. Step 2: Convert to fraction form
    10,425.88/15,638.82 = 3,505.24/x
  3. Step 3: Cross multiply
    10,425.88x = 15,638.82 × 3,505.24
  4. Step 4: Simplify right side
    10,425.88x = 54,817,817.42
  5. Step 5: Solve for x
    x = 54,817,817.42/10,425.88
  6. Step 6: Final answer
    x = 5,257.86

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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.