Home / 18,545.72-27,781.48-11,146.16

Finding the Fourth Proportional to 18,545.72, 27,781.48 and 11,146.16

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Solution

The fourth proportional to 18,545.72, 27,781.48 and 11,146.16 is: 16,696.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,545.72 : 27,781.48 = 11,146.16 : x
  2. Step 2: Convert to fraction form
    18,545.72/27,781.48 = 11,146.16/x
  3. Step 3: Cross multiply
    18,545.72x = 27,781.48 × 11,146.16
  4. Step 4: Simplify right side
    18,545.72x = 309,656,821.12
  5. Step 5: Solve for x
    x = 309,656,821.12/18,545.72
  6. Step 6: Final answer
    x = 16,696.94

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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.