Home / 13,552.92-18,789.57-13,071.78

Finding the Fourth Proportional to 13,552.92, 18,789.57 and 13,071.78

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Solution

The fourth proportional to 13,552.92, 18,789.57 and 13,071.78 is: 18,122.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,552.92 : 18,789.57 = 13,071.78 : x
  2. Step 2: Convert to fraction form
    13,552.92/18,789.57 = 13,071.78/x
  3. Step 3: Cross multiply
    13,552.92x = 18,789.57 × 13,071.78
  4. Step 4: Simplify right side
    13,552.92x = 245,613,125.33
  5. Step 5: Solve for x
    x = 245,613,125.33/13,552.92
  6. Step 6: Final answer
    x = 18,122.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.