Home / 18,727.94-28,082.24-6,878.69

Finding the Fourth Proportional to 18,727.94, 28,082.24 and 6,878.69

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Solution

The fourth proportional to 18,727.94, 28,082.24 and 6,878.69 is: 10,314.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727.94 : 28,082.24 = 6,878.69 : x
  2. Step 2: Convert to fraction form
    18,727.94/28,082.24 = 6,878.69/x
  3. Step 3: Cross multiply
    18,727.94x = 28,082.24 × 6,878.69
  4. Step 4: Simplify right side
    18,727.94x = 193,168,979.76
  5. Step 5: Solve for x
    x = 193,168,979.76/18,727.94
  6. Step 6: Final answer
    x = 10,314.48

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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.