Home / 12,714.24-17,546.88-7,407.36

Finding the Fourth Proportional to 12,714.24, 17,546.88 and 7,407.36

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Solution

The fourth proportional to 12,714.24, 17,546.88 and 7,407.36 is: 10,222.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,714.24 : 17,546.88 = 7,407.36 : x
  2. Step 2: Convert to fraction form
    12,714.24/17,546.88 = 7,407.36/x
  3. Step 3: Cross multiply
    12,714.24x = 17,546.88 × 7,407.36
  4. Step 4: Simplify right side
    12,714.24x = 129,976,057.04
  5. Step 5: Solve for x
    x = 129,976,057.04/12,714.24
  6. Step 6: Final answer
    x = 10,222.87

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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.