Home / 8,256.12-12,384.60-3,060.78

Finding the Fourth Proportional to 8,256.12, 12,384.60 and 3,060.78

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Solution

The fourth proportional to 8,256.12, 12,384.60 and 3,060.78 is: 4,591.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256.12 : 12,384.60 = 3,060.78 : x
  2. Step 2: Convert to fraction form
    8,256.12/12,384.60 = 3,060.78/x
  3. Step 3: Cross multiply
    8,256.12x = 12,384.60 × 3,060.78
  4. Step 4: Simplify right side
    8,256.12x = 37,906,535.99
  5. Step 5: Solve for x
    x = 37,906,535.99/8,256.12
  6. Step 6: Final answer
    x = 4,591.33

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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.