Home / 18,781.36-25,923.45-11,232.88

Finding the Fourth Proportional to 18,781.36, 25,923.45 and 11,232.88

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Solution

The fourth proportional to 18,781.36, 25,923.45 and 11,232.88 is: 15,504.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781.36 : 25,923.45 = 11,232.88 : x
  2. Step 2: Convert to fraction form
    18,781.36/25,923.45 = 11,232.88/x
  3. Step 3: Cross multiply
    18,781.36x = 25,923.45 × 11,232.88
  4. Step 4: Simplify right side
    18,781.36x = 291,195,003.04
  5. Step 5: Solve for x
    x = 291,195,003.04/18,781.36
  6. Step 6: Final answer
    x = 15,504.47

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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.