Home / 10,105.30-15,159.99-4,261.90

Finding the Fourth Proportional to 10,105.30, 15,159.99 and 4,261.90

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Solution

The fourth proportional to 10,105.30, 15,159.99 and 4,261.90 is: 6,393.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,105.30 : 15,159.99 = 4,261.90 : x
  2. Step 2: Convert to fraction form
    10,105.30/15,159.99 = 4,261.90/x
  3. Step 3: Cross multiply
    10,105.30x = 15,159.99 × 4,261.90
  4. Step 4: Simplify right side
    10,105.30x = 64,610,361.38
  5. Step 5: Solve for x
    x = 64,610,361.38/10,105.30
  6. Step 6: Final answer
    x = 6,393.71

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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.