Home / 8,153.17-12,230.78-2,886.95

Finding the Fourth Proportional to 8,153.17, 12,230.78 and 2,886.95

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Solution

The fourth proportional to 8,153.17, 12,230.78 and 2,886.95 is: 4,330.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,153.17 : 12,230.78 = 2,886.95 : x
  2. Step 2: Convert to fraction form
    8,153.17/12,230.78 = 2,886.95/x
  3. Step 3: Cross multiply
    8,153.17x = 12,230.78 × 2,886.95
  4. Step 4: Simplify right side
    8,153.17x = 35,309,650.32
  5. Step 5: Solve for x
    x = 35,309,650.32/8,153.17
  6. Step 6: Final answer
    x = 4,330.79

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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.