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Finding the Fourth Proportional to 8,680.75, 13,009.17 and 4,512.49

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Solution

The fourth proportional to 8,680.75, 13,009.17 and 4,512.49 is: 6,762.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.75 : 13,009.17 = 4,512.49 : x
  2. Step 2: Convert to fraction form
    8,680.75/13,009.17 = 4,512.49/x
  3. Step 3: Cross multiply
    8,680.75x = 13,009.17 × 4,512.49
  4. Step 4: Simplify right side
    8,680.75x = 58,703,749.53
  5. Step 5: Solve for x
    x = 58,703,749.53/8,680.75
  6. Step 6: Final answer
    x = 6,762.52

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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.