Home / 18,760.50-28,109.57-13,202.16

Finding the Fourth Proportional to 18,760.50, 28,109.57 and 13,202.16

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Solution

The fourth proportional to 18,760.50, 28,109.57 and 13,202.16 is: 19,781.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,760.50 : 28,109.57 = 13,202.16 : x
  2. Step 2: Convert to fraction form
    18,760.50/28,109.57 = 13,202.16/x
  3. Step 3: Cross multiply
    18,760.50x = 28,109.57 × 13,202.16
  4. Step 4: Simplify right side
    18,760.50x = 371,106,974.66
  5. Step 5: Solve for x
    x = 371,106,974.66/18,760.50
  6. Step 6: Final answer
    x = 19,781.29

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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.