Home / 15,452.86-21,324.84-8,379.29

Finding the Fourth Proportional to 15,452.86, 21,324.84 and 8,379.29

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Solution

The fourth proportional to 15,452.86, 21,324.84 and 8,379.29 is: 11,563.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,452.86 : 21,324.84 = 8,379.29 : x
  2. Step 2: Convert to fraction form
    15,452.86/21,324.84 = 8,379.29/x
  3. Step 3: Cross multiply
    15,452.86x = 21,324.84 × 8,379.29
  4. Step 4: Simplify right side
    15,452.86x = 178,686,961.21
  5. Step 5: Solve for x
    x = 178,686,961.21/15,452.86
  6. Step 6: Final answer
    x = 11,563.36

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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.