Home / 18,312.66-27,469.67-5,165.38

Finding the Fourth Proportional to 18,312.66, 27,469.67 and 5,165.38

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Solution

The fourth proportional to 18,312.66, 27,469.67 and 5,165.38 is: 7,748.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.66 : 27,469.67 = 5,165.38 : x
  2. Step 2: Convert to fraction form
    18,312.66/27,469.67 = 5,165.38/x
  3. Step 3: Cross multiply
    18,312.66x = 27,469.67 × 5,165.38
  4. Step 4: Simplify right side
    18,312.66x = 141,891,292.53
  5. Step 5: Solve for x
    x = 141,891,292.53/18,312.66
  6. Step 6: Final answer
    x = 7,748.26

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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.