Home / 8,308.39-11,469.40-7,169.53

Finding the Fourth Proportional to 8,308.39, 11,469.40 and 7,169.53

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Solution

The fourth proportional to 8,308.39, 11,469.40 and 7,169.53 is: 9,897.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,308.39 : 11,469.40 = 7,169.53 : x
  2. Step 2: Convert to fraction form
    8,308.39/11,469.40 = 7,169.53/x
  3. Step 3: Cross multiply
    8,308.39x = 11,469.40 × 7,169.53
  4. Step 4: Simplify right side
    8,308.39x = 82,230,244.12
  5. Step 5: Solve for x
    x = 82,230,244.12/8,308.39
  6. Step 6: Final answer
    x = 9,897.25

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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.