Home / 15,452.23-21,324.09-8,378.68

Finding the Fourth Proportional to 15,452.23, 21,324.09 and 8,378.68

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Solution

The fourth proportional to 15,452.23, 21,324.09 and 8,378.68 is: 11,562.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,452.23 : 21,324.09 = 8,378.68 : x
  2. Step 2: Convert to fraction form
    15,452.23/21,324.09 = 8,378.68/x
  3. Step 3: Cross multiply
    15,452.23x = 21,324.09 × 8,378.68
  4. Step 4: Simplify right side
    15,452.23x = 178,667,726.40
  5. Step 5: Solve for x
    x = 178,667,726.40/15,452.23
  6. Step 6: Final answer
    x = 11,562.59

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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.