Home / 8,539.28-12,807.87-2,299.78

Finding the Fourth Proportional to 8,539.28, 12,807.87 and 2,299.78

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Solution

The fourth proportional to 8,539.28, 12,807.87 and 2,299.78 is: 3,449.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.28 : 12,807.87 = 2,299.78 : x
  2. Step 2: Convert to fraction form
    8,539.28/12,807.87 = 2,299.78/x
  3. Step 3: Cross multiply
    8,539.28x = 12,807.87 × 2,299.78
  4. Step 4: Simplify right side
    8,539.28x = 29,455,283.27
  5. Step 5: Solve for x
    x = 29,455,283.27/8,539.28
  6. Step 6: Final answer
    x = 3,449.39

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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.