Home / 15,514.24-21,409.92-8,801.44

Finding the Fourth Proportional to 15,514.24, 21,409.92 and 8,801.44

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Solution

The fourth proportional to 15,514.24, 21,409.92 and 8,801.44 is: 12,146.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,514.24 : 21,409.92 = 8,801.44 : x
  2. Step 2: Convert to fraction form
    15,514.24/21,409.92 = 8,801.44/x
  3. Step 3: Cross multiply
    15,514.24x = 21,409.92 × 8,801.44
  4. Step 4: Simplify right side
    15,514.24x = 188,438,126.28
  5. Step 5: Solve for x
    x = 188,438,126.28/15,514.24
  6. Step 6: Final answer
    x = 12,146.14

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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.