Home / 8,564.31-12,847.68-2,721.42

Finding the Fourth Proportional to 8,564.31, 12,847.68 and 2,721.42

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Solution

The fourth proportional to 8,564.31, 12,847.68 and 2,721.42 is: 4,082.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,564.31 : 12,847.68 = 2,721.42 : x
  2. Step 2: Convert to fraction form
    8,564.31/12,847.68 = 2,721.42/x
  3. Step 3: Cross multiply
    8,564.31x = 12,847.68 × 2,721.42
  4. Step 4: Simplify right side
    8,564.31x = 34,963,933.31
  5. Step 5: Solve for x
    x = 34,963,933.31/8,564.31
  6. Step 6: Final answer
    x = 4,082.52

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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.