Home / 13,481.57-18,603.33-8,708.44

Finding the Fourth Proportional to 13,481.57, 18,603.33 and 8,708.44

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Solution

The fourth proportional to 13,481.57, 18,603.33 and 8,708.44 is: 12,016.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.57 : 18,603.33 = 8,708.44 : x
  2. Step 2: Convert to fraction form
    13,481.57/18,603.33 = 8,708.44/x
  3. Step 3: Cross multiply
    13,481.57x = 18,603.33 × 8,708.44
  4. Step 4: Simplify right side
    13,481.57x = 162,005,983.11
  5. Step 5: Solve for x
    x = 162,005,983.11/13,481.57
  6. Step 6: Final answer
    x = 12,016.85

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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.