Home / 8,008.11-11,042.87-5,780.61

Finding the Fourth Proportional to 8,008.11, 11,042.87 and 5,780.61

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Solution

The fourth proportional to 8,008.11, 11,042.87 and 5,780.61 is: 7,971.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,008.11 : 11,042.87 = 5,780.61 : x
  2. Step 2: Convert to fraction form
    8,008.11/11,042.87 = 5,780.61/x
  3. Step 3: Cross multiply
    8,008.11x = 11,042.87 × 5,780.61
  4. Step 4: Simplify right side
    8,008.11x = 63,834,495.85
  5. Step 5: Solve for x
    x = 63,834,495.85/8,008.11
  6. Step 6: Final answer
    x = 7,971.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.