Home / 12,198.79-18,293.59-4,799.20

Finding the Fourth Proportional to 12,198.79, 18,293.59 and 4,799.20

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Solution

The fourth proportional to 12,198.79, 18,293.59 and 4,799.20 is: 7,196.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.79 : 18,293.59 = 4,799.20 : x
  2. Step 2: Convert to fraction form
    12,198.79/18,293.59 = 4,799.20/x
  3. Step 3: Cross multiply
    12,198.79x = 18,293.59 × 4,799.20
  4. Step 4: Simplify right side
    12,198.79x = 87,794,597.13
  5. Step 5: Solve for x
    x = 87,794,597.13/12,198.79
  6. Step 6: Final answer
    x = 7,196.99

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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.