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Finding the Fourth Proportional to 9,328.76, 12,874.60 and 6,966.80

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Solution

The fourth proportional to 9,328.76, 12,874.60 and 6,966.80 is: 9,614.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.76 : 12,874.60 = 6,966.80 : x
  2. Step 2: Convert to fraction form
    9,328.76/12,874.60 = 6,966.80/x
  3. Step 3: Cross multiply
    9,328.76x = 12,874.60 × 6,966.80
  4. Step 4: Simplify right side
    9,328.76x = 89,694,763.28
  5. Step 5: Solve for x
    x = 89,694,763.28/9,328.76
  6. Step 6: Final answer
    x = 9,614.86

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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.