Home / 10,379.13-15,567.02-2,981.90

Finding the Fourth Proportional to 10,379.13, 15,567.02 and 2,981.90

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Solution

The fourth proportional to 10,379.13, 15,567.02 and 2,981.90 is: 4,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379.13 : 15,567.02 = 2,981.90 : x
  2. Step 2: Convert to fraction form
    10,379.13/15,567.02 = 2,981.90/x
  3. Step 3: Cross multiply
    10,379.13x = 15,567.02 × 2,981.90
  4. Step 4: Simplify right side
    10,379.13x = 46,419,343.31
  5. Step 5: Solve for x
    x = 46,419,343.31/10,379.13
  6. Step 6: Final answer
    x = 4,472.37

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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.