Home / 15,204.54-20,976.30-8,830.04

Finding the Fourth Proportional to 15,204.54, 20,976.30 and 8,830.04

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Solution

The fourth proportional to 15,204.54, 20,976.30 and 8,830.04 is: 12,181.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,204.54 : 20,976.30 = 8,830.04 : x
  2. Step 2: Convert to fraction form
    15,204.54/20,976.30 = 8,830.04/x
  3. Step 3: Cross multiply
    15,204.54x = 20,976.30 × 8,830.04
  4. Step 4: Simplify right side
    15,204.54x = 185,221,568.05
  5. Step 5: Solve for x
    x = 185,221,568.05/15,204.54
  6. Step 6: Final answer
    x = 12,181.99

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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.