Home / 18,865.04-28,297.32-11,471.52

Finding the Fourth Proportional to 18,865.04, 28,297.32 and 11,471.52

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Solution

The fourth proportional to 18,865.04, 28,297.32 and 11,471.52 is: 17,207.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,865.04 : 28,297.32 = 11,471.52 : x
  2. Step 2: Convert to fraction form
    18,865.04/28,297.32 = 11,471.52/x
  3. Step 3: Cross multiply
    18,865.04x = 28,297.32 × 11,471.52
  4. Step 4: Simplify right side
    18,865.04x = 324,613,272.33
  5. Step 5: Solve for x
    x = 324,613,272.33/18,865.04
  6. Step 6: Final answer
    x = 17,207.13

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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.