Home / 13,917.12-20,885.95-10,229.29

Finding the Fourth Proportional to 13,917.12, 20,885.95 and 10,229.29

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Solution

The fourth proportional to 13,917.12, 20,885.95 and 10,229.29 is: 15,351.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.12 : 20,885.95 = 10,229.29 : x
  2. Step 2: Convert to fraction form
    13,917.12/20,885.95 = 10,229.29/x
  3. Step 3: Cross multiply
    13,917.12x = 20,885.95 × 10,229.29
  4. Step 4: Simplify right side
    13,917.12x = 213,648,400.05
  5. Step 5: Solve for x
    x = 213,648,400.05/13,917.12
  6. Step 6: Final answer
    x = 15,351.48

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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.