Home / 8,766.40-13,147.20-3,572.80

Finding the Fourth Proportional to 8,766.40, 13,147.20 and 3,572.80

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Solution

The fourth proportional to 8,766.40, 13,147.20 and 3,572.80 is: 5,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.40 : 13,147.20 = 3,572.80 : x
  2. Step 2: Convert to fraction form
    8,766.40/13,147.20 = 3,572.80/x
  3. Step 3: Cross multiply
    8,766.40x = 13,147.20 × 3,572.80
  4. Step 4: Simplify right side
    8,766.40x = 46,972,316.16
  5. Step 5: Solve for x
    x = 46,972,316.16/8,766.40
  6. Step 6: Final answer
    x = 5,358.22

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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.