Home / 15,994.80-22,072.44-8,921.04

Finding the Fourth Proportional to 15,994.80, 22,072.44 and 8,921.04

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Solution

The fourth proportional to 15,994.80, 22,072.44 and 8,921.04 is: 12,310.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,994.80 : 22,072.44 = 8,921.04 : x
  2. Step 2: Convert to fraction form
    15,994.80/22,072.44 = 8,921.04/x
  3. Step 3: Cross multiply
    15,994.80x = 22,072.44 × 8,921.04
  4. Step 4: Simplify right side
    15,994.80x = 196,909,120.14
  5. Step 5: Solve for x
    x = 196,909,120.14/15,994.80
  6. Step 6: Final answer
    x = 12,310.82

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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.