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Finding the Fourth Proportional to 8,105.88, 12,160.44 and 2,559.74

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Solution

The fourth proportional to 8,105.88, 12,160.44 and 2,559.74 is: 3,840.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105.88 : 12,160.44 = 2,559.74 : x
  2. Step 2: Convert to fraction form
    8,105.88/12,160.44 = 2,559.74/x
  3. Step 3: Cross multiply
    8,105.88x = 12,160.44 × 2,559.74
  4. Step 4: Simplify right side
    8,105.88x = 31,127,595.09
  5. Step 5: Solve for x
    x = 31,127,595.09/8,105.88
  6. Step 6: Final answer
    x = 3,840.13

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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.