Home / 12,834.39-17,711.28-7,169.23

Finding the Fourth Proportional to 12,834.39, 17,711.28 and 7,169.23

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Solution

The fourth proportional to 12,834.39, 17,711.28 and 7,169.23 is: 9,893.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,834.39 : 17,711.28 = 7,169.23 : x
  2. Step 2: Convert to fraction form
    12,834.39/17,711.28 = 7,169.23/x
  3. Step 3: Cross multiply
    12,834.39x = 17,711.28 × 7,169.23
  4. Step 4: Simplify right side
    12,834.39x = 126,976,239.91
  5. Step 5: Solve for x
    x = 126,976,239.91/12,834.39
  6. Step 6: Final answer
    x = 9,893.44

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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.