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Finding the Fourth Proportional to 8,980.49, 13,471.11 and 2,655.38

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Solution

The fourth proportional to 8,980.49, 13,471.11 and 2,655.38 is: 3,983.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.49 : 13,471.11 = 2,655.38 : x
  2. Step 2: Convert to fraction form
    8,980.49/13,471.11 = 2,655.38/x
  3. Step 3: Cross multiply
    8,980.49x = 13,471.11 × 2,655.38
  4. Step 4: Simplify right side
    8,980.49x = 35,770,916.07
  5. Step 5: Solve for x
    x = 35,770,916.07/8,980.49
  6. Step 6: Final answer
    x = 3,983.18

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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.