Home / 17,982.65-26,988.10-12,474.75

Finding the Fourth Proportional to 17,982.65, 26,988.10 and 12,474.75

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Solution

The fourth proportional to 17,982.65, 26,988.10 and 12,474.75 is: 18,721.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,982.65 : 26,988.10 = 12,474.75 : x
  2. Step 2: Convert to fraction form
    17,982.65/26,988.10 = 12,474.75/x
  3. Step 3: Cross multiply
    17,982.65x = 26,988.10 × 12,474.75
  4. Step 4: Simplify right side
    17,982.65x = 336,669,800.48
  5. Step 5: Solve for x
    x = 336,669,800.48/17,982.65
  6. Step 6: Final answer
    x = 18,721.92

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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.