Home / 18,111.80-27,167.70-4,964.15

Finding the Fourth Proportional to 18,111.80, 27,167.70 and 4,964.15

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Solution

The fourth proportional to 18,111.80, 27,167.70 and 4,964.15 is: 7,446.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111.80 : 27,167.70 = 4,964.15 : x
  2. Step 2: Convert to fraction form
    18,111.80/27,167.70 = 4,964.15/x
  3. Step 3: Cross multiply
    18,111.80x = 27,167.70 × 4,964.15
  4. Step 4: Simplify right side
    18,111.80x = 134,864,537.96
  5. Step 5: Solve for x
    x = 134,864,537.96/18,111.80
  6. Step 6: Final answer
    x = 7,446.23

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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.