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Finding the Fourth Proportional to 8,937.72, 12,327.96 and 5,394.84

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Solution

The fourth proportional to 8,937.72, 12,327.96 and 5,394.84 is: 7,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,937.72 : 12,327.96 = 5,394.84 : x
  2. Step 2: Convert to fraction form
    8,937.72/12,327.96 = 5,394.84/x
  3. Step 3: Cross multiply
    8,937.72x = 12,327.96 × 5,394.84
  4. Step 4: Simplify right side
    8,937.72x = 66,507,371.73
  5. Step 5: Solve for x
    x = 66,507,371.73/8,937.72
  6. Step 6: Final answer
    x = 7,441.20

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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.