Home / 15,542.73-21,448.77-8,469.18

Finding the Fourth Proportional to 15,542.73, 21,448.77 and 8,469.18

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Solution

The fourth proportional to 15,542.73, 21,448.77 and 8,469.18 is: 11,687.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,542.73 : 21,448.77 = 8,469.18 : x
  2. Step 2: Convert to fraction form
    15,542.73/21,448.77 = 8,469.18/x
  3. Step 3: Cross multiply
    15,542.73x = 21,448.77 × 8,469.18
  4. Step 4: Simplify right side
    15,542.73x = 181,653,493.91
  5. Step 5: Solve for x
    x = 181,653,493.91/15,542.73
  6. Step 6: Final answer
    x = 11,687.36

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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.