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Finding the Fourth Proportional to 8,752.40, 13,141.40 and 6,166.80

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Solution

The fourth proportional to 8,752.40, 13,141.40 and 6,166.80 is: 9,259.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.40 : 13,141.40 = 6,166.80 : x
  2. Step 2: Convert to fraction form
    8,752.40/13,141.40 = 6,166.80/x
  3. Step 3: Cross multiply
    8,752.40x = 13,141.40 × 6,166.80
  4. Step 4: Simplify right side
    8,752.40x = 81,040,385.52
  5. Step 5: Solve for x
    x = 81,040,385.52/8,752.40
  6. Step 6: Final answer
    x = 9,259.22

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1.5x scale

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.