Home / 18,540.40-25,583.32-11,373.52

Finding the Fourth Proportional to 18,540.40, 25,583.32 and 11,373.52

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Solution

The fourth proportional to 18,540.40, 25,583.32 and 11,373.52 is: 15,693.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.40 : 25,583.32 = 11,373.52 : x
  2. Step 2: Convert to fraction form
    18,540.40/25,583.32 = 11,373.52/x
  3. Step 3: Cross multiply
    18,540.40x = 25,583.32 × 11,373.52
  4. Step 4: Simplify right side
    18,540.40x = 290,972,401.69
  5. Step 5: Solve for x
    x = 290,972,401.69/18,540.40
  6. Step 6: Final answer
    x = 15,693.97

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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.