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Finding the Fourth Proportional to 8,208.13, 12,248.13 and 7,324.55

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Solution

The fourth proportional to 8,208.13, 12,248.13 and 7,324.55 is: 10,929.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.13 : 12,248.13 = 7,324.55 : x
  2. Step 2: Convert to fraction form
    8,208.13/12,248.13 = 7,324.55/x
  3. Step 3: Cross multiply
    8,208.13x = 12,248.13 × 7,324.55
  4. Step 4: Simplify right side
    8,208.13x = 89,712,040.59
  5. Step 5: Solve for x
    x = 89,712,040.59/8,208.13
  6. Step 6: Final answer
    x = 10,929.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.