Home / 18,515.80-25,552.41-10,132.30

Finding the Fourth Proportional to 18,515.80, 25,552.41 and 10,132.30

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Solution

The fourth proportional to 18,515.80, 25,552.41 and 10,132.30 is: 13,982.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.80 : 25,552.41 = 10,132.30 : x
  2. Step 2: Convert to fraction form
    18,515.80/25,552.41 = 10,132.30/x
  3. Step 3: Cross multiply
    18,515.80x = 25,552.41 × 10,132.30
  4. Step 4: Simplify right side
    18,515.80x = 258,904,683.84
  5. Step 5: Solve for x
    x = 258,904,683.84/18,515.80
  6. Step 6: Final answer
    x = 13,982.91

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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.