Home / 18,327.53-25,287.86-11,161.16

Finding the Fourth Proportional to 18,327.53, 25,287.86 and 11,161.16

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Solution

The fourth proportional to 18,327.53, 25,287.86 and 11,161.16 is: 15,399.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,327.53 : 25,287.86 = 11,161.16 : x
  2. Step 2: Convert to fraction form
    18,327.53/25,287.86 = 11,161.16/x
  3. Step 3: Cross multiply
    18,327.53x = 25,287.86 × 11,161.16
  4. Step 4: Simplify right side
    18,327.53x = 282,241,669.27
  5. Step 5: Solve for x
    x = 282,241,669.27/18,327.53
  6. Step 6: Final answer
    x = 15,399.88

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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.