Home / 15,452.25-21,324.12-8,378.67

Finding the Fourth Proportional to 15,452.25, 21,324.12 and 8,378.67

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Solution

The fourth proportional to 15,452.25, 21,324.12 and 8,378.67 is: 11,562.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,452.25 : 21,324.12 = 8,378.67 : x
  2. Step 2: Convert to fraction form
    15,452.25/21,324.12 = 8,378.67/x
  3. Step 3: Cross multiply
    15,452.25x = 21,324.12 × 8,378.67
  4. Step 4: Simplify right side
    15,452.25x = 178,667,854.70
  5. Step 5: Solve for x
    x = 178,667,854.70/15,452.25
  6. Step 6: Final answer
    x = 11,562.58

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Double scale
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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.