Home / 8,128.04-12,192.05-2,932.70

Finding the Fourth Proportional to 8,128.04, 12,192.05 and 2,932.70

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Solution

The fourth proportional to 8,128.04, 12,192.05 and 2,932.70 is: 4,399.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.04 : 12,192.05 = 2,932.70 : x
  2. Step 2: Convert to fraction form
    8,128.04/12,192.05 = 2,932.70/x
  3. Step 3: Cross multiply
    8,128.04x = 12,192.05 × 2,932.70
  4. Step 4: Simplify right side
    8,128.04x = 35,755,549.41
  5. Step 5: Solve for x
    x = 35,755,549.41/8,128.04
  6. Step 6: Final answer
    x = 4,399.04

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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.