Home / 14,115.40-19,481.80-8,146.24

Finding the Fourth Proportional to 14,115.40, 19,481.80 and 8,146.24

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Solution

The fourth proportional to 14,115.40, 19,481.80 and 8,146.24 is: 11,243.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.40 : 19,481.80 = 8,146.24 : x
  2. Step 2: Convert to fraction form
    14,115.40/19,481.80 = 8,146.24/x
  3. Step 3: Cross multiply
    14,115.40x = 19,481.80 × 8,146.24
  4. Step 4: Simplify right side
    14,115.40x = 158,703,418.43
  5. Step 5: Solve for x
    x = 158,703,418.43/14,115.40
  6. Step 6: Final answer
    x = 11,243.28

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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.