Home / 18,240.18-27,361.49-5,760.72

Finding the Fourth Proportional to 18,240.18, 27,361.49 and 5,760.72

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Solution

The fourth proportional to 18,240.18, 27,361.49 and 5,760.72 is: 8,641.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.18 : 27,361.49 = 5,760.72 : x
  2. Step 2: Convert to fraction form
    18,240.18/27,361.49 = 5,760.72/x
  3. Step 3: Cross multiply
    18,240.18x = 27,361.49 × 5,760.72
  4. Step 4: Simplify right side
    18,240.18x = 157,621,853.87
  5. Step 5: Solve for x
    x = 157,621,853.87/18,240.18
  6. Step 6: Final answer
    x = 8,641.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.