Home / 13,677.24-18,876.60-8,371.20

Finding the Fourth Proportional to 13,677.24, 18,876.60 and 8,371.20

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Solution

The fourth proportional to 13,677.24, 18,876.60 and 8,371.20 is: 11,553.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.24 : 18,876.60 = 8,371.20 : x
  2. Step 2: Convert to fraction form
    13,677.24/18,876.60 = 8,371.20/x
  3. Step 3: Cross multiply
    13,677.24x = 18,876.60 × 8,371.20
  4. Step 4: Simplify right side
    13,677.24x = 158,019,793.92
  5. Step 5: Solve for x
    x = 158,019,793.92/13,677.24
  6. Step 6: Final answer
    x = 11,553.49

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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.