Home / 8,101.68-12,153.72-2,555.52

Finding the Fourth Proportional to 8,101.68, 12,153.72 and 2,555.52

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Solution

The fourth proportional to 8,101.68, 12,153.72 and 2,555.52 is: 3,833.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.68 : 12,153.72 = 2,555.52 : x
  2. Step 2: Convert to fraction form
    8,101.68/12,153.72 = 2,555.52/x
  3. Step 3: Cross multiply
    8,101.68x = 12,153.72 × 2,555.52
  4. Step 4: Simplify right side
    8,101.68x = 31,059,074.53
  5. Step 5: Solve for x
    x = 31,059,074.53/8,101.68
  6. Step 6: Final answer
    x = 3,833.66

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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.