Home / 8,679.28-13,020-2,834.32

Finding the Fourth Proportional to 8,679.28, 13,020 and 2,834.32

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Solution

The fourth proportional to 8,679.28, 13,020 and 2,834.32 is: 4,251.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.28 : 13,020 = 2,834.32 : x
  2. Step 2: Convert to fraction form
    8,679.28/13,020 = 2,834.32/x
  3. Step 3: Cross multiply
    8,679.28x = 13,020 × 2,834.32
  4. Step 4: Simplify right side
    8,679.28x = 36,902,846.40
  5. Step 5: Solve for x
    x = 36,902,846.40/8,679.28
  6. Step 6: Final answer
    x = 4,251.83

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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.