Home / 11,187.70-16,791.15-4,957.30

Finding the Fourth Proportional to 11,187.70, 16,791.15 and 4,957.30

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Solution

The fourth proportional to 11,187.70, 16,791.15 and 4,957.30 is: 7,440.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.70 : 16,791.15 = 4,957.30 : x
  2. Step 2: Convert to fraction form
    11,187.70/16,791.15 = 4,957.30/x
  3. Step 3: Cross multiply
    11,187.70x = 16,791.15 × 4,957.30
  4. Step 4: Simplify right side
    11,187.70x = 83,238,767.90
  5. Step 5: Solve for x
    x = 83,238,767.90/11,187.70
  6. Step 6: Final answer
    x = 7,440.20

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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.