Home / 15,324.48-21,149.92-8,610.63

Finding the Fourth Proportional to 15,324.48, 21,149.92 and 8,610.63

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Solution

The fourth proportional to 15,324.48, 21,149.92 and 8,610.63 is: 11,883.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.48 : 21,149.92 = 8,610.63 : x
  2. Step 2: Convert to fraction form
    15,324.48/21,149.92 = 8,610.63/x
  3. Step 3: Cross multiply
    15,324.48x = 21,149.92 × 8,610.63
  4. Step 4: Simplify right side
    15,324.48x = 182,114,135.65
  5. Step 5: Solve for x
    x = 182,114,135.65/15,324.48
  6. Step 6: Final answer
    x = 11,883.87

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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.