Home / 8,541.28-12,812.64-2,697.76

Finding the Fourth Proportional to 8,541.28, 12,812.64 and 2,697.76

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Solution

The fourth proportional to 8,541.28, 12,812.64 and 2,697.76 is: 4,046.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.28 : 12,812.64 = 2,697.76 : x
  2. Step 2: Convert to fraction form
    8,541.28/12,812.64 = 2,697.76/x
  3. Step 3: Cross multiply
    8,541.28x = 12,812.64 × 2,697.76
  4. Step 4: Simplify right side
    8,541.28x = 34,565,427.69
  5. Step 5: Solve for x
    x = 34,565,427.69/8,541.28
  6. Step 6: Final answer
    x = 4,046.87

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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.