Home / 8,599.28-12,869.75-5,138.96

Finding the Fourth Proportional to 8,599.28, 12,869.75 and 5,138.96

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Solution

The fourth proportional to 8,599.28, 12,869.75 and 5,138.96 is: 7,691.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.28 : 12,869.75 = 5,138.96 : x
  2. Step 2: Convert to fraction form
    8,599.28/12,869.75 = 5,138.96/x
  3. Step 3: Cross multiply
    8,599.28x = 12,869.75 × 5,138.96
  4. Step 4: Simplify right side
    8,599.28x = 66,137,078.96
  5. Step 5: Solve for x
    x = 66,137,078.96/8,599.28
  6. Step 6: Final answer
    x = 7,691.01

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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.