Home / 18,331.12-25,296.72-9,947.56

Finding the Fourth Proportional to 18,331.12, 25,296.72 and 9,947.56

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Solution

The fourth proportional to 18,331.12, 25,296.72 and 9,947.56 is: 13,727.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.12 : 25,296.72 = 9,947.56 : x
  2. Step 2: Convert to fraction form
    18,331.12/25,296.72 = 9,947.56/x
  3. Step 3: Cross multiply
    18,331.12x = 25,296.72 × 9,947.56
  4. Step 4: Simplify right side
    18,331.12x = 251,640,640.00
  5. Step 5: Solve for x
    x = 251,640,640.00/18,331.12
  6. Step 6: Final answer
    x = 13,727.51

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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.