Home / 18,738.45-28,108.59-6,257.97

Finding the Fourth Proportional to 18,738.45, 28,108.59 and 6,257.97

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Solution

The fourth proportional to 18,738.45, 28,108.59 and 6,257.97 is: 9,387.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.45 : 28,108.59 = 6,257.97 : x
  2. Step 2: Convert to fraction form
    18,738.45/28,108.59 = 6,257.97/x
  3. Step 3: Cross multiply
    18,738.45x = 28,108.59 × 6,257.97
  4. Step 4: Simplify right side
    18,738.45x = 175,902,712.96
  5. Step 5: Solve for x
    x = 175,902,712.96/18,738.45
  6. Step 6: Final answer
    x = 9,387.26

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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.