Home / 11,838.78-17,753.52-4,439.21

Finding the Fourth Proportional to 11,838.78, 17,753.52 and 4,439.21

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Solution

The fourth proportional to 11,838.78, 17,753.52 and 4,439.21 is: 6,657.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,838.78 : 17,753.52 = 4,439.21 : x
  2. Step 2: Convert to fraction form
    11,838.78/17,753.52 = 4,439.21/x
  3. Step 3: Cross multiply
    11,838.78x = 17,753.52 × 4,439.21
  4. Step 4: Simplify right side
    11,838.78x = 78,811,514.75
  5. Step 5: Solve for x
    x = 78,811,514.75/11,838.78
  6. Step 6: Final answer
    x = 6,657.06

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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.