Home / 8,272.64-12,406.28-2,724.68

Finding the Fourth Proportional to 8,272.64, 12,406.28 and 2,724.68

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Solution

The fourth proportional to 8,272.64, 12,406.28 and 2,724.68 is: 4,086.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272.64 : 12,406.28 = 2,724.68 : x
  2. Step 2: Convert to fraction form
    8,272.64/12,406.28 = 2,724.68/x
  3. Step 3: Cross multiply
    8,272.64x = 12,406.28 × 2,724.68
  4. Step 4: Simplify right side
    8,272.64x = 33,803,160.38
  5. Step 5: Solve for x
    x = 33,803,160.38/8,272.64
  6. Step 6: Final answer
    x = 4,086.14

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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.