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Finding the Fourth Proportional to 8,739.97, 13,091.46 and 7,066.91

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Solution

The fourth proportional to 8,739.97, 13,091.46 and 7,066.91 is: 10,585.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.97 : 13,091.46 = 7,066.91 : x
  2. Step 2: Convert to fraction form
    8,739.97/13,091.46 = 7,066.91/x
  3. Step 3: Cross multiply
    8,739.97x = 13,091.46 × 7,066.91
  4. Step 4: Simplify right side
    8,739.97x = 92,516,202.32
  5. Step 5: Solve for x
    x = 92,516,202.32/8,739.97
  6. Step 6: Final answer
    x = 10,585.42

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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.