Home / 17,643.24-26,440.16-13,257.90

Finding the Fourth Proportional to 17,643.24, 26,440.16 and 13,257.90

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Solution

The fourth proportional to 17,643.24, 26,440.16 and 13,257.90 is: 19,868.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,643.24 : 26,440.16 = 13,257.90 : x
  2. Step 2: Convert to fraction form
    17,643.24/26,440.16 = 13,257.90/x
  3. Step 3: Cross multiply
    17,643.24x = 26,440.16 × 13,257.90
  4. Step 4: Simplify right side
    17,643.24x = 350,540,930.97
  5. Step 5: Solve for x
    x = 350,540,930.97/17,643.24
  6. Step 6: Final answer
    x = 19,868.29

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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.