Home / 8,940.33-12,339.45-5,164.11

Finding the Fourth Proportional to 8,940.33, 12,339.45 and 5,164.11

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Solution

The fourth proportional to 8,940.33, 12,339.45 and 5,164.11 is: 7,127.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.33 : 12,339.45 = 5,164.11 : x
  2. Step 2: Convert to fraction form
    8,940.33/12,339.45 = 5,164.11/x
  3. Step 3: Cross multiply
    8,940.33x = 12,339.45 × 5,164.11
  4. Step 4: Simplify right side
    8,940.33x = 63,722,277.14
  5. Step 5: Solve for x
    x = 63,722,277.14/8,940.33
  6. Step 6: Final answer
    x = 7,127.51

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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.