Home / 13,225.97-18,229.11-12,603.13

Finding the Fourth Proportional to 13,225.97, 18,229.11 and 12,603.13

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Solution

The fourth proportional to 13,225.97, 18,229.11 and 12,603.13 is: 17,370.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.97 : 18,229.11 = 12,603.13 : x
  2. Step 2: Convert to fraction form
    13,225.97/18,229.11 = 12,603.13/x
  3. Step 3: Cross multiply
    13,225.97x = 18,229.11 × 12,603.13
  4. Step 4: Simplify right side
    13,225.97x = 229,743,843.11
  5. Step 5: Solve for x
    x = 229,743,843.11/13,225.97
  6. Step 6: Final answer
    x = 17,370.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.