Home / 18,331.32-25,297.68-9,947.80

Finding the Fourth Proportional to 18,331.32, 25,297.68 and 9,947.80

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Solution

The fourth proportional to 18,331.32, 25,297.68 and 9,947.80 is: 13,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.32 : 25,297.68 = 9,947.80 : x
  2. Step 2: Convert to fraction form
    18,331.32/25,297.68 = 9,947.80/x
  3. Step 3: Cross multiply
    18,331.32x = 25,297.68 × 9,947.80
  4. Step 4: Simplify right side
    18,331.32x = 251,656,261.10
  5. Step 5: Solve for x
    x = 251,656,261.10/18,331.32
  6. Step 6: Final answer
    x = 13,728.21

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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.