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Finding the Fourth Proportional to 6,612.82, 9,905.19 and 4,966.90

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Solution

The fourth proportional to 6,612.82, 9,905.19 and 4,966.90 is: 7,439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.82 : 9,905.19 = 4,966.90 : x
  2. Step 2: Convert to fraction form
    6,612.82/9,905.19 = 4,966.90/x
  3. Step 3: Cross multiply
    6,612.82x = 9,905.19 × 4,966.90
  4. Step 4: Simplify right side
    6,612.82x = 49,198,088.21
  5. Step 5: Solve for x
    x = 49,198,088.21/6,612.82
  6. Step 6: Final answer
    x = 7,439.80

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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.