Home / 11,020.82-15,187.70-10,818.38

Finding the Fourth Proportional to 11,020.82, 15,187.70 and 10,818.38

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Solution

The fourth proportional to 11,020.82, 15,187.70 and 10,818.38 is: 14,908.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,020.82 : 15,187.70 = 10,818.38 : x
  2. Step 2: Convert to fraction form
    11,020.82/15,187.70 = 10,818.38/x
  3. Step 3: Cross multiply
    11,020.82x = 15,187.70 × 10,818.38
  4. Step 4: Simplify right side
    11,020.82x = 164,306,374.94
  5. Step 5: Solve for x
    x = 164,306,374.94/11,020.82
  6. Step 6: Final answer
    x = 14,908.73

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.