Home / 10,138.32-15,185.88-5,753.52

Finding the Fourth Proportional to 10,138.32, 15,185.88 and 5,753.52

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Solution

The fourth proportional to 10,138.32, 15,185.88 and 5,753.52 is: 8,618.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.32 : 15,185.88 = 5,753.52 : x
  2. Step 2: Convert to fraction form
    10,138.32/15,185.88 = 5,753.52/x
  3. Step 3: Cross multiply
    10,138.32x = 15,185.88 × 5,753.52
  4. Step 4: Simplify right side
    10,138.32x = 87,372,264.30
  5. Step 5: Solve for x
    x = 87,372,264.30/10,138.32
  6. Step 6: Final answer
    x = 8,618.02

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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.