Home / 10,138.38-15,207.57-4,291.02

Finding the Fourth Proportional to 10,138.38, 15,207.57 and 4,291.02

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Solution

The fourth proportional to 10,138.38, 15,207.57 and 4,291.02 is: 6,436.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.38 : 15,207.57 = 4,291.02 : x
  2. Step 2: Convert to fraction form
    10,138.38/15,207.57 = 4,291.02/x
  3. Step 3: Cross multiply
    10,138.38x = 15,207.57 × 4,291.02
  4. Step 4: Simplify right side
    10,138.38x = 65,255,987.02
  5. Step 5: Solve for x
    x = 65,255,987.02/10,138.38
  6. Step 6: Final answer
    x = 6,436.53

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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.