Home / 18,375.60-25,370.22-11,579.43

Finding the Fourth Proportional to 18,375.60, 25,370.22 and 11,579.43

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Solution

The fourth proportional to 18,375.60, 25,370.22 and 11,579.43 is: 15,987.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.60 : 25,370.22 = 11,579.43 : x
  2. Step 2: Convert to fraction form
    18,375.60/25,370.22 = 11,579.43/x
  3. Step 3: Cross multiply
    18,375.60x = 25,370.22 × 11,579.43
  4. Step 4: Simplify right side
    18,375.60x = 293,772,686.57
  5. Step 5: Solve for x
    x = 293,772,686.57/18,375.60
  6. Step 6: Final answer
    x = 15,987.11

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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.