Home / 8,177.30-12,258.54-2,979.50

Finding the Fourth Proportional to 8,177.30, 12,258.54 and 2,979.50

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Solution

The fourth proportional to 8,177.30, 12,258.54 and 2,979.50 is: 4,466.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,177.30 : 12,258.54 = 2,979.50 : x
  2. Step 2: Convert to fraction form
    8,177.30/12,258.54 = 2,979.50/x
  3. Step 3: Cross multiply
    8,177.30x = 12,258.54 × 2,979.50
  4. Step 4: Simplify right side
    8,177.30x = 36,524,319.93
  5. Step 5: Solve for x
    x = 36,524,319.93/8,177.30
  6. Step 6: Final answer
    x = 4,466.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.