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Finding the Fourth Proportional to 8,808.32, 12,166.12 and 6,414.46

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Solution

The fourth proportional to 8,808.32, 12,166.12 and 6,414.46 is: 8,859.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.32 : 12,166.12 = 6,414.46 : x
  2. Step 2: Convert to fraction form
    8,808.32/12,166.12 = 6,414.46/x
  3. Step 3: Cross multiply
    8,808.32x = 12,166.12 × 6,414.46
  4. Step 4: Simplify right side
    8,808.32x = 78,039,090.10
  5. Step 5: Solve for x
    x = 78,039,090.10/8,808.32
  6. Step 6: Final answer
    x = 8,859.70

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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.