Home / 18,748.15-28,108.31-11,350.85

Finding the Fourth Proportional to 18,748.15, 28,108.31 and 11,350.85

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Solution

The fourth proportional to 18,748.15, 28,108.31 and 11,350.85 is: 17,017.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.15 : 28,108.31 = 11,350.85 : x
  2. Step 2: Convert to fraction form
    18,748.15/28,108.31 = 11,350.85/x
  3. Step 3: Cross multiply
    18,748.15x = 28,108.31 × 11,350.85
  4. Step 4: Simplify right side
    18,748.15x = 319,053,013.27
  5. Step 5: Solve for x
    x = 319,053,013.27/18,748.15
  6. Step 6: Final answer
    x = 17,017.84

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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.