Home / 18,979.23-28,468.45-6,329.90

Finding the Fourth Proportional to 18,979.23, 28,468.45 and 6,329.90

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Solution

The fourth proportional to 18,979.23, 28,468.45 and 6,329.90 is: 9,494.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979.23 : 28,468.45 = 6,329.90 : x
  2. Step 2: Convert to fraction form
    18,979.23/28,468.45 = 6,329.90/x
  3. Step 3: Cross multiply
    18,979.23x = 28,468.45 × 6,329.90
  4. Step 4: Simplify right side
    18,979.23x = 180,202,441.66
  5. Step 5: Solve for x
    x = 180,202,441.66/18,979.23
  6. Step 6: Final answer
    x = 9,494.72

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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.