Home / 18,122.04-27,178.11-4,971.29

Finding the Fourth Proportional to 18,122.04, 27,178.11 and 4,971.29

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Solution

The fourth proportional to 18,122.04, 27,178.11 and 4,971.29 is: 7,455.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.04 : 27,178.11 = 4,971.29 : x
  2. Step 2: Convert to fraction form
    18,122.04/27,178.11 = 4,971.29/x
  3. Step 3: Cross multiply
    18,122.04x = 27,178.11 × 4,971.29
  4. Step 4: Simplify right side
    18,122.04x = 135,110,130.57
  5. Step 5: Solve for x
    x = 135,110,130.57/18,122.04
  6. Step 6: Final answer
    x = 7,455.57

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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.