Home / 18,775.44-25,902.72-13,108.68

Finding the Fourth Proportional to 18,775.44, 25,902.72 and 13,108.68

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Solution

The fourth proportional to 18,775.44, 25,902.72 and 13,108.68 is: 18,084.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775.44 : 25,902.72 = 13,108.68 : x
  2. Step 2: Convert to fraction form
    18,775.44/25,902.72 = 13,108.68/x
  3. Step 3: Cross multiply
    18,775.44x = 25,902.72 × 13,108.68
  4. Step 4: Simplify right side
    18,775.44x = 339,550,467.61
  5. Step 5: Solve for x
    x = 339,550,467.61/18,775.44
  6. Step 6: Final answer
    x = 18,084.82

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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.