Home / 15,209.26-20,988.26-8,494.84

Finding the Fourth Proportional to 15,209.26, 20,988.26 and 8,494.84

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Solution

The fourth proportional to 15,209.26, 20,988.26 and 8,494.84 is: 11,722.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,209.26 : 20,988.26 = 8,494.84 : x
  2. Step 2: Convert to fraction form
    15,209.26/20,988.26 = 8,494.84/x
  3. Step 3: Cross multiply
    15,209.26x = 20,988.26 × 8,494.84
  4. Step 4: Simplify right side
    15,209.26x = 178,291,910.58
  5. Step 5: Solve for x
    x = 178,291,910.58/15,209.26
  6. Step 6: Final answer
    x = 11,722.59

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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.