Home / 8,569.28-12,857.56-3,025.64

Finding the Fourth Proportional to 8,569.28, 12,857.56 and 3,025.64

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Solution

The fourth proportional to 8,569.28, 12,857.56 and 3,025.64 is: 4,539.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,569.28 : 12,857.56 = 3,025.64 : x
  2. Step 2: Convert to fraction form
    8,569.28/12,857.56 = 3,025.64/x
  3. Step 3: Cross multiply
    8,569.28x = 12,857.56 × 3,025.64
  4. Step 4: Simplify right side
    8,569.28x = 38,902,347.84
  5. Step 5: Solve for x
    x = 38,902,347.84/8,569.28
  6. Step 6: Final answer
    x = 4,539.75

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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.