Home / 7,418.30-11,127.87-2,487.51

Finding the Fourth Proportional to 7,418.30, 11,127.87 and 2,487.51

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Solution

The fourth proportional to 7,418.30, 11,127.87 and 2,487.51 is: 3,731.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.30 : 11,127.87 = 2,487.51 : x
  2. Step 2: Convert to fraction form
    7,418.30/11,127.87 = 2,487.51/x
  3. Step 3: Cross multiply
    7,418.30x = 11,127.87 × 2,487.51
  4. Step 4: Simplify right side
    7,418.30x = 27,680,687.90
  5. Step 5: Solve for x
    x = 27,680,687.90/7,418.30
  6. Step 6: Final answer
    x = 3,731.41

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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.