Home / 10,372.13-15,555-2,974.61

Finding the Fourth Proportional to 10,372.13, 15,555 and 2,974.61

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Solution

The fourth proportional to 10,372.13, 15,555 and 2,974.61 is: 4,461.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,372.13 : 15,555 = 2,974.61 : x
  2. Step 2: Convert to fraction form
    10,372.13/15,555 = 2,974.61/x
  3. Step 3: Cross multiply
    10,372.13x = 15,555 × 2,974.61
  4. Step 4: Simplify right side
    10,372.13x = 46,270,058.55
  5. Step 5: Solve for x
    x = 46,270,058.55/10,372.13
  6. Step 6: Final answer
    x = 4,461.00

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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.