Home / 18,722.52-25,834.59-11,169.72

Finding the Fourth Proportional to 18,722.52, 25,834.59 and 11,169.72

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Solution

The fourth proportional to 18,722.52, 25,834.59 and 11,169.72 is: 15,412.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.52 : 25,834.59 = 11,169.72 : x
  2. Step 2: Convert to fraction form
    18,722.52/25,834.59 = 11,169.72/x
  3. Step 3: Cross multiply
    18,722.52x = 25,834.59 × 11,169.72
  4. Step 4: Simplify right side
    18,722.52x = 288,565,136.61
  5. Step 5: Solve for x
    x = 288,565,136.61/18,722.52
  6. Step 6: Final answer
    x = 15,412.73

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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.