Home / 10,103.30-15,156.99-4,259.90

Finding the Fourth Proportional to 10,103.30, 15,156.99 and 4,259.90

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Solution

The fourth proportional to 10,103.30, 15,156.99 and 4,259.90 is: 6,390.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,103.30 : 15,156.99 = 4,259.90 : x
  2. Step 2: Convert to fraction form
    10,103.30/15,156.99 = 4,259.90/x
  3. Step 3: Cross multiply
    10,103.30x = 15,156.99 × 4,259.90
  4. Step 4: Simplify right side
    10,103.30x = 64,567,261.70
  5. Step 5: Solve for x
    x = 64,567,261.70/10,103.30
  6. Step 6: Final answer
    x = 6,390.71

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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.