Home / 8,108.81-12,146.79-6,253.49

Finding the Fourth Proportional to 8,108.81, 12,146.79 and 6,253.49

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Solution

The fourth proportional to 8,108.81, 12,146.79 and 6,253.49 is: 9,367.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.81 : 12,146.79 = 6,253.49 : x
  2. Step 2: Convert to fraction form
    8,108.81/12,146.79 = 6,253.49/x
  3. Step 3: Cross multiply
    8,108.81x = 12,146.79 × 6,253.49
  4. Step 4: Simplify right side
    8,108.81x = 75,959,829.80
  5. Step 5: Solve for x
    x = 75,959,829.80/8,108.81
  6. Step 6: Final answer
    x = 9,367.57

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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.