Home / 15,194.05-20,968.68-8,479.96

Finding the Fourth Proportional to 15,194.05, 20,968.68 and 8,479.96

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Solution

The fourth proportional to 15,194.05, 20,968.68 and 8,479.96 is: 11,702.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,194.05 : 20,968.68 = 8,479.96 : x
  2. Step 2: Convert to fraction form
    15,194.05/20,968.68 = 8,479.96/x
  3. Step 3: Cross multiply
    15,194.05x = 20,968.68 × 8,479.96
  4. Step 4: Simplify right side
    15,194.05x = 177,813,567.65
  5. Step 5: Solve for x
    x = 177,813,567.65/15,194.05
  6. Step 6: Final answer
    x = 11,702.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.