Home / 10,142.76-15,220.96-3,569

Finding the Fourth Proportional to 10,142.76, 15,220.96 and 3,569

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Solution

The fourth proportional to 10,142.76, 15,220.96 and 3,569 is: 5,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142.76 : 15,220.96 = 3,569 : x
  2. Step 2: Convert to fraction form
    10,142.76/15,220.96 = 3,569/x
  3. Step 3: Cross multiply
    10,142.76x = 15,220.96 × 3,569
  4. Step 4: Simplify right side
    10,142.76x = 54,323,606.24
  5. Step 5: Solve for x
    x = 54,323,606.24/10,142.76
  6. Step 6: Final answer
    x = 5,355.90

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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.