Home / 8,918.91-13,350.62-6,581.55

Finding the Fourth Proportional to 8,918.91, 13,350.62 and 6,581.55

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Solution

The fourth proportional to 8,918.91, 13,350.62 and 6,581.55 is: 9,851.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.91 : 13,350.62 = 6,581.55 : x
  2. Step 2: Convert to fraction form
    8,918.91/13,350.62 = 6,581.55/x
  3. Step 3: Cross multiply
    8,918.91x = 13,350.62 × 6,581.55
  4. Step 4: Simplify right side
    8,918.91x = 87,867,839.58
  5. Step 5: Solve for x
    x = 87,867,839.58/8,918.91
  6. Step 6: Final answer
    x = 9,851.86

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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.