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Finding the Fourth Proportional to 8,908.75, 13,363.31 and 2,752.75

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Solution

The fourth proportional to 8,908.75, 13,363.31 and 2,752.75 is: 4,129.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.75 : 13,363.31 = 2,752.75 : x
  2. Step 2: Convert to fraction form
    8,908.75/13,363.31 = 2,752.75/x
  3. Step 3: Cross multiply
    8,908.75x = 13,363.31 × 2,752.75
  4. Step 4: Simplify right side
    8,908.75x = 36,785,851.60
  5. Step 5: Solve for x
    x = 36,785,851.60/8,908.75
  6. Step 6: Final answer
    x = 4,129.18

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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.