Home / 13,229.90-19,839.85-5,329.74

Finding the Fourth Proportional to 13,229.90, 19,839.85 and 5,329.74

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Solution

The fourth proportional to 13,229.90, 19,839.85 and 5,329.74 is: 7,992.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.90 : 19,839.85 = 5,329.74 : x
  2. Step 2: Convert to fraction form
    13,229.90/19,839.85 = 5,329.74/x
  3. Step 3: Cross multiply
    13,229.90x = 19,839.85 × 5,329.74
  4. Step 4: Simplify right side
    13,229.90x = 105,741,221.59
  5. Step 5: Solve for x
    x = 105,741,221.59/13,229.90
  6. Step 6: Final answer
    x = 7,992.59

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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.