Home / 13,910.28-20,837.62-8,360.62

Finding the Fourth Proportional to 13,910.28, 20,837.62 and 8,360.62

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Solution

The fourth proportional to 13,910.28, 20,837.62 and 8,360.62 is: 12,524.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.28 : 20,837.62 = 8,360.62 : x
  2. Step 2: Convert to fraction form
    13,910.28/20,837.62 = 8,360.62/x
  3. Step 3: Cross multiply
    13,910.28x = 20,837.62 × 8,360.62
  4. Step 4: Simplify right side
    13,910.28x = 174,215,422.52
  5. Step 5: Solve for x
    x = 174,215,422.52/13,910.28
  6. Step 6: Final answer
    x = 12,524.22

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1.5x scale

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.