Home / 10,231.20-15,342.92-3,656.16

Finding the Fourth Proportional to 10,231.20, 15,342.92 and 3,656.16

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Solution

The fourth proportional to 10,231.20, 15,342.92 and 3,656.16 is: 5,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,231.20 : 15,342.92 = 3,656.16 : x
  2. Step 2: Convert to fraction form
    10,231.20/15,342.92 = 3,656.16/x
  3. Step 3: Cross multiply
    10,231.20x = 15,342.92 × 3,656.16
  4. Step 4: Simplify right side
    10,231.20x = 56,096,170.39
  5. Step 5: Solve for x
    x = 56,096,170.39/10,231.20
  6. Step 6: Final answer
    x = 5,482.85

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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.