Home / 15,147.25-22,720.97-5,286.49

Finding the Fourth Proportional to 15,147.25, 22,720.97 and 5,286.49

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Solution

The fourth proportional to 15,147.25, 22,720.97 and 5,286.49 is: 7,929.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,147.25 : 22,720.97 = 5,286.49 : x
  2. Step 2: Convert to fraction form
    15,147.25/22,720.97 = 5,286.49/x
  3. Step 3: Cross multiply
    15,147.25x = 22,720.97 × 5,286.49
  4. Step 4: Simplify right side
    15,147.25x = 120,114,137.11
  5. Step 5: Solve for x
    x = 120,114,137.11/15,147.25
  6. Step 6: Final answer
    x = 7,929.77

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.