Home / 11,342.28-17,008.62-4,321.20

Finding the Fourth Proportional to 11,342.28, 17,008.62 and 4,321.20

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Solution

The fourth proportional to 11,342.28, 17,008.62 and 4,321.20 is: 6,479.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,342.28 : 17,008.62 = 4,321.20 : x
  2. Step 2: Convert to fraction form
    11,342.28/17,008.62 = 4,321.20/x
  3. Step 3: Cross multiply
    11,342.28x = 17,008.62 × 4,321.20
  4. Step 4: Simplify right side
    11,342.28x = 73,497,648.74
  5. Step 5: Solve for x
    x = 73,497,648.74/11,342.28
  6. Step 6: Final answer
    x = 6,479.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.