Home / 11,979.22-17,970.06-4,589.92

Finding the Fourth Proportional to 11,979.22, 17,970.06 and 4,589.92

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Solution

The fourth proportional to 11,979.22, 17,970.06 and 4,589.92 is: 6,885.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.22 : 17,970.06 = 4,589.92 : x
  2. Step 2: Convert to fraction form
    11,979.22/17,970.06 = 4,589.92/x
  3. Step 3: Cross multiply
    11,979.22x = 17,970.06 × 4,589.92
  4. Step 4: Simplify right side
    11,979.22x = 82,481,137.80
  5. Step 5: Solve for x
    x = 82,481,137.80/11,979.22
  6. Step 6: Final answer
    x = 6,885.35

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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.