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Finding the Fourth Proportional to 6,672.92, 10,009.38 and 2,781.68

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Solution

The fourth proportional to 6,672.92, 10,009.38 and 2,781.68 is: 4,172.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,672.92 : 10,009.38 = 2,781.68 : x
  2. Step 2: Convert to fraction form
    6,672.92/10,009.38 = 2,781.68/x
  3. Step 3: Cross multiply
    6,672.92x = 10,009.38 × 2,781.68
  4. Step 4: Simplify right side
    6,672.92x = 27,842,892.16
  5. Step 5: Solve for x
    x = 27,842,892.16/6,672.92
  6. Step 6: Final answer
    x = 4,172.52

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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.