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Finding the Fourth Proportional to 8,694.79, 13,013.03 and 7,134.73

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Solution

The fourth proportional to 8,694.79, 13,013.03 and 7,134.73 is: 10,678.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694.79 : 13,013.03 = 7,134.73 : x
  2. Step 2: Convert to fraction form
    8,694.79/13,013.03 = 7,134.73/x
  3. Step 3: Cross multiply
    8,694.79x = 13,013.03 × 7,134.73
  4. Step 4: Simplify right side
    8,694.79x = 92,844,419.86
  5. Step 5: Solve for x
    x = 92,844,419.86/8,694.79
  6. Step 6: Final answer
    x = 10,678.17

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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.