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Finding the Fourth Proportional to 11,191.56, 15,545.58 and 11,013

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Solution

The fourth proportional to 11,191.56, 15,545.58 and 11,013 is: 15,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.56 : 15,545.58 = 11,013 : x
  2. Step 2: Convert to fraction form
    11,191.56/15,545.58 = 11,013/x
  3. Step 3: Cross multiply
    11,191.56x = 15,545.58 × 11,013
  4. Step 4: Simplify right side
    11,191.56x = 171,203,472.54
  5. Step 5: Solve for x
    x = 171,203,472.54/11,191.56
  6. Step 6: Final answer
    x = 15,297.55

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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.