Home / 15,982.20-22,055.73-8,907.86

Finding the Fourth Proportional to 15,982.20, 22,055.73 and 8,907.86

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Solution

The fourth proportional to 15,982.20, 22,055.73 and 8,907.86 is: 12,293.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,982.20 : 22,055.73 = 8,907.86 : x
  2. Step 2: Convert to fraction form
    15,982.20/22,055.73 = 8,907.86/x
  3. Step 3: Cross multiply
    15,982.20x = 22,055.73 × 8,907.86
  4. Step 4: Simplify right side
    15,982.20x = 196,469,321.63
  5. Step 5: Solve for x
    x = 196,469,321.63/15,982.20
  6. Step 6: Final answer
    x = 12,293.01

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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.