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Finding the Fourth Proportional to 9,866.03, 13,612.36 and 6,680.91

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Solution

The fourth proportional to 9,866.03, 13,612.36 and 6,680.91 is: 9,217.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866.03 : 13,612.36 = 6,680.91 : x
  2. Step 2: Convert to fraction form
    9,866.03/13,612.36 = 6,680.91/x
  3. Step 3: Cross multiply
    9,866.03x = 13,612.36 × 6,680.91
  4. Step 4: Simplify right side
    9,866.03x = 90,942,850.58
  5. Step 5: Solve for x
    x = 90,942,850.58/9,866.03
  6. Step 6: Final answer
    x = 9,217.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.