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Finding the Fourth Proportional to 8,751.43, 13,127.19 and 2,511.55

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Solution

The fourth proportional to 8,751.43, 13,127.19 and 2,511.55 is: 3,767.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.43 : 13,127.19 = 2,511.55 : x
  2. Step 2: Convert to fraction form
    8,751.43/13,127.19 = 2,511.55/x
  3. Step 3: Cross multiply
    8,751.43x = 13,127.19 × 2,511.55
  4. Step 4: Simplify right side
    8,751.43x = 32,969,594.04
  5. Step 5: Solve for x
    x = 32,969,594.04/8,751.43
  6. Step 6: Final answer
    x = 3,767.34

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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.