Home / 10,363.02-15,549.11-5,431.48

Finding the Fourth Proportional to 10,363.02, 15,549.11 and 5,431.48

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Solution

The fourth proportional to 10,363.02, 15,549.11 and 5,431.48 is: 8,149.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,363.02 : 15,549.11 = 5,431.48 : x
  2. Step 2: Convert to fraction form
    10,363.02/15,549.11 = 5,431.48/x
  3. Step 3: Cross multiply
    10,363.02x = 15,549.11 × 5,431.48
  4. Step 4: Simplify right side
    10,363.02x = 84,454,679.98
  5. Step 5: Solve for x
    x = 84,454,679.98/10,363.02
  6. Step 6: Final answer
    x = 8,149.62

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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.