Home / 17,908.20-26,862.30-4,761.90

Finding the Fourth Proportional to 17,908.20, 26,862.30 and 4,761.90

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Solution

The fourth proportional to 17,908.20, 26,862.30 and 4,761.90 is: 7,142.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,908.20 : 26,862.30 = 4,761.90 : x
  2. Step 2: Convert to fraction form
    17,908.20/26,862.30 = 4,761.90/x
  3. Step 3: Cross multiply
    17,908.20x = 26,862.30 × 4,761.90
  4. Step 4: Simplify right side
    17,908.20x = 127,915,586.37
  5. Step 5: Solve for x
    x = 127,915,586.37/17,908.20
  6. Step 6: Final answer
    x = 7,142.85

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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.