Home / 10,539.82-15,805.02-3,142.29

Finding the Fourth Proportional to 10,539.82, 15,805.02 and 3,142.29

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Solution

The fourth proportional to 10,539.82, 15,805.02 and 3,142.29 is: 4,712.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,539.82 : 15,805.02 = 3,142.29 : x
  2. Step 2: Convert to fraction form
    10,539.82/15,805.02 = 3,142.29/x
  3. Step 3: Cross multiply
    10,539.82x = 15,805.02 × 3,142.29
  4. Step 4: Simplify right side
    10,539.82x = 49,664,027.35
  5. Step 5: Solve for x
    x = 49,664,027.35/10,539.82
  6. Step 6: Final answer
    x = 4,712.04

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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.