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Finding the Fourth Proportional to 8,928.39, 12,324.03 and 5,203.11

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Solution

The fourth proportional to 8,928.39, 12,324.03 and 5,203.11 is: 7,181.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.39 : 12,324.03 = 5,203.11 : x
  2. Step 2: Convert to fraction form
    8,928.39/12,324.03 = 5,203.11/x
  3. Step 3: Cross multiply
    8,928.39x = 12,324.03 × 5,203.11
  4. Step 4: Simplify right side
    8,928.39x = 64,123,283.73
  5. Step 5: Solve for x
    x = 64,123,283.73/8,928.39
  6. Step 6: Final answer
    x = 7,181.95

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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.