Home / 8,083.52-12,129.82-3,153.50

Finding the Fourth Proportional to 8,083.52, 12,129.82 and 3,153.50

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Solution

The fourth proportional to 8,083.52, 12,129.82 and 3,153.50 is: 4,732.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083.52 : 12,129.82 = 3,153.50 : x
  2. Step 2: Convert to fraction form
    8,083.52/12,129.82 = 3,153.50/x
  3. Step 3: Cross multiply
    8,083.52x = 12,129.82 × 3,153.50
  4. Step 4: Simplify right side
    8,083.52x = 38,251,318.84
  5. Step 5: Solve for x
    x = 38,251,318.84/8,083.52
  6. Step 6: Final answer
    x = 4,732.02

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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.