Home / 8,103.21-11,187.59-6,614.66

Finding the Fourth Proportional to 8,103.21, 11,187.59 and 6,614.66

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Solution

The fourth proportional to 8,103.21, 11,187.59 and 6,614.66 is: 9,132.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.21 : 11,187.59 = 6,614.66 : x
  2. Step 2: Convert to fraction form
    8,103.21/11,187.59 = 6,614.66/x
  3. Step 3: Cross multiply
    8,103.21x = 11,187.59 × 6,614.66
  4. Step 4: Simplify right side
    8,103.21x = 74,002,098.97
  5. Step 5: Solve for x
    x = 74,002,098.97/8,103.21
  6. Step 6: Final answer
    x = 9,132.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.