Home / 11,843.28-17,690.36-8,695.44

Finding the Fourth Proportional to 11,843.28, 17,690.36 and 8,695.44

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Solution

The fourth proportional to 11,843.28, 17,690.36 and 8,695.44 is: 12,988.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,843.28 : 17,690.36 = 8,695.44 : x
  2. Step 2: Convert to fraction form
    11,843.28/17,690.36 = 8,695.44/x
  3. Step 3: Cross multiply
    11,843.28x = 17,690.36 × 8,695.44
  4. Step 4: Simplify right side
    11,843.28x = 153,825,463.96
  5. Step 5: Solve for x
    x = 153,825,463.96/11,843.28
  6. Step 6: Final answer
    x = 12,988.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.