Home / 15,540.75-21,446.37-8,467.29

Finding the Fourth Proportional to 15,540.75, 21,446.37 and 8,467.29

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Solution

The fourth proportional to 15,540.75, 21,446.37 and 8,467.29 is: 11,684.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.75 : 21,446.37 = 8,467.29 : x
  2. Step 2: Convert to fraction form
    15,540.75/21,446.37 = 8,467.29/x
  3. Step 3: Cross multiply
    15,540.75x = 21,446.37 × 8,467.29
  4. Step 4: Simplify right side
    15,540.75x = 181,592,634.24
  5. Step 5: Solve for x
    x = 181,592,634.24/15,540.75
  6. Step 6: Final answer
    x = 11,684.93

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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.