Home / 18,494.08-27,728.16-6,805.78

Finding the Fourth Proportional to 18,494.08, 27,728.16 and 6,805.78

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Solution

The fourth proportional to 18,494.08, 27,728.16 and 6,805.78 is: 10,203.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,494.08 : 27,728.16 = 6,805.78 : x
  2. Step 2: Convert to fraction form
    18,494.08/27,728.16 = 6,805.78/x
  3. Step 3: Cross multiply
    18,494.08x = 27,728.16 × 6,805.78
  4. Step 4: Simplify right side
    18,494.08x = 188,711,756.76
  5. Step 5: Solve for x
    x = 188,711,756.76/18,494.08
  6. Step 6: Final answer
    x = 10,203.90

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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.