Home / 8,371.72-12,558.80-2,528.78

Finding the Fourth Proportional to 8,371.72, 12,558.80 and 2,528.78

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Solution

The fourth proportional to 8,371.72, 12,558.80 and 2,528.78 is: 3,793.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.72 : 12,558.80 = 2,528.78 : x
  2. Step 2: Convert to fraction form
    8,371.72/12,558.80 = 2,528.78/x
  3. Step 3: Cross multiply
    8,371.72x = 12,558.80 × 2,528.78
  4. Step 4: Simplify right side
    8,371.72x = 31,758,479.98
  5. Step 5: Solve for x
    x = 31,758,479.98/8,371.72
  6. Step 6: Final answer
    x = 3,793.54

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1.5x scale

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.