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Finding the Fourth Proportional to 15,097.20, 20,834.33 and 8,383.25

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Solution

The fourth proportional to 15,097.20, 20,834.33 and 8,383.25 is: 11,568.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,097.20 : 20,834.33 = 8,383.25 : x
  2. Step 2: Convert to fraction form
    15,097.20/20,834.33 = 8,383.25/x
  3. Step 3: Cross multiply
    15,097.20x = 20,834.33 × 8,383.25
  4. Step 4: Simplify right side
    15,097.20x = 174,659,250.88
  5. Step 5: Solve for x
    x = 174,659,250.88/15,097.20
  6. Step 6: Final answer
    x = 11,568.98

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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.