Home / 18,669.42-27,994.32-5,519.88

Finding the Fourth Proportional to 18,669.42, 27,994.32 and 5,519.88

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Solution

The fourth proportional to 18,669.42, 27,994.32 and 5,519.88 is: 8,276.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669.42 : 27,994.32 = 5,519.88 : x
  2. Step 2: Convert to fraction form
    18,669.42/27,994.32 = 5,519.88/x
  3. Step 3: Cross multiply
    18,669.42x = 27,994.32 × 5,519.88
  4. Step 4: Simplify right side
    18,669.42x = 154,525,287.08
  5. Step 5: Solve for x
    x = 154,525,287.08/18,669.42
  6. Step 6: Final answer
    x = 8,276.92

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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.