Home / 8,451.48-12,679.02-3,258.84

Finding the Fourth Proportional to 8,451.48, 12,679.02 and 3,258.84

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Solution

The fourth proportional to 8,451.48, 12,679.02 and 3,258.84 is: 4,888.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.48 : 12,679.02 = 3,258.84 : x
  2. Step 2: Convert to fraction form
    8,451.48/12,679.02 = 3,258.84/x
  3. Step 3: Cross multiply
    8,451.48x = 12,679.02 × 3,258.84
  4. Step 4: Simplify right side
    8,451.48x = 41,318,897.54
  5. Step 5: Solve for x
    x = 41,318,897.54/8,451.48
  6. Step 6: Final answer
    x = 4,888.95

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1.5x scale

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.