Home / 15,542.99-21,449.34-8,469.43

Finding the Fourth Proportional to 15,542.99, 21,449.34 and 8,469.43

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Solution

The fourth proportional to 15,542.99, 21,449.34 and 8,469.43 is: 11,687.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,542.99 : 21,449.34 = 8,469.43 : x
  2. Step 2: Convert to fraction form
    15,542.99/21,449.34 = 8,469.43/x
  3. Step 3: Cross multiply
    15,542.99x = 21,449.34 × 8,469.43
  4. Step 4: Simplify right side
    15,542.99x = 181,663,683.68
  5. Step 5: Solve for x
    x = 181,663,683.68/15,542.99
  6. Step 6: Final answer
    x = 11,687.82

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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.