Home / 13,933.20-19,229.40-8,344.20

Finding the Fourth Proportional to 13,933.20, 19,229.40 and 8,344.20

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Solution

The fourth proportional to 13,933.20, 19,229.40 and 8,344.20 is: 11,515.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.20 : 19,229.40 = 8,344.20 : x
  2. Step 2: Convert to fraction form
    13,933.20/19,229.40 = 8,344.20/x
  3. Step 3: Cross multiply
    13,933.20x = 19,229.40 × 8,344.20
  4. Step 4: Simplify right side
    13,933.20x = 160,453,959.48
  5. Step 5: Solve for x
    x = 160,453,959.48/13,933.20
  6. Step 6: Final answer
    x = 11,515.94

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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.