Home / 8,524.28-12,787.64-2,678.92

Finding the Fourth Proportional to 8,524.28, 12,787.64 and 2,678.92

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Solution

The fourth proportional to 8,524.28, 12,787.64 and 2,678.92 is: 4,018.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,524.28 : 12,787.64 = 2,678.92 : x
  2. Step 2: Convert to fraction form
    8,524.28/12,787.64 = 2,678.92/x
  3. Step 3: Cross multiply
    8,524.28x = 12,787.64 × 2,678.92
  4. Step 4: Simplify right side
    8,524.28x = 34,257,064.55
  5. Step 5: Solve for x
    x = 34,257,064.55/8,524.28
  6. Step 6: Final answer
    x = 4,018.76

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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.