Home / 8,142.80-11,233.49-6,251.04

Finding the Fourth Proportional to 8,142.80, 11,233.49 and 6,251.04

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Solution

The fourth proportional to 8,142.80, 11,233.49 and 6,251.04 is: 8,623.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.80 : 11,233.49 = 6,251.04 : x
  2. Step 2: Convert to fraction form
    8,142.80/11,233.49 = 6,251.04/x
  3. Step 3: Cross multiply
    8,142.80x = 11,233.49 × 6,251.04
  4. Step 4: Simplify right side
    8,142.80x = 70,220,964.07
  5. Step 5: Solve for x
    x = 70,220,964.07/8,142.80
  6. Step 6: Final answer
    x = 8,623.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.