Home / 8,212.61-11,335.17-5,227.80

Finding the Fourth Proportional to 8,212.61, 11,335.17 and 5,227.80

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Solution

The fourth proportional to 8,212.61, 11,335.17 and 5,227.80 is: 7,215.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.61 : 11,335.17 = 5,227.80 : x
  2. Step 2: Convert to fraction form
    8,212.61/11,335.17 = 5,227.80/x
  3. Step 3: Cross multiply
    8,212.61x = 11,335.17 × 5,227.80
  4. Step 4: Simplify right side
    8,212.61x = 59,258,001.73
  5. Step 5: Solve for x
    x = 59,258,001.73/8,212.61
  6. Step 6: Final answer
    x = 7,215.49

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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.