Home / 11,057.18-15,278.33-8,837.37

Finding the Fourth Proportional to 11,057.18, 15,278.33 and 8,837.37

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Solution

The fourth proportional to 11,057.18, 15,278.33 and 8,837.37 is: 12,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,057.18 : 15,278.33 = 8,837.37 : x
  2. Step 2: Convert to fraction form
    11,057.18/15,278.33 = 8,837.37/x
  3. Step 3: Cross multiply
    11,057.18x = 15,278.33 × 8,837.37
  4. Step 4: Simplify right side
    11,057.18x = 135,020,277.29
  5. Step 5: Solve for x
    x = 135,020,277.29/11,057.18
  6. Step 6: Final answer
    x = 12,211.10

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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.