Home / 12,250.88-16,906.56-7,215.44

Finding the Fourth Proportional to 12,250.88, 16,906.56 and 7,215.44

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Solution

The fourth proportional to 12,250.88, 16,906.56 and 7,215.44 is: 9,957.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.88 : 16,906.56 = 7,215.44 : x
  2. Step 2: Convert to fraction form
    12,250.88/16,906.56 = 7,215.44/x
  3. Step 3: Cross multiply
    12,250.88x = 16,906.56 × 7,215.44
  4. Step 4: Simplify right side
    12,250.88x = 121,988,269.29
  5. Step 5: Solve for x
    x = 121,988,269.29/12,250.88
  6. Step 6: Final answer
    x = 9,957.51

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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.