Home / 18,767.83-28,149.65-4,727.85

Finding the Fourth Proportional to 18,767.83, 28,149.65 and 4,727.85

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Solution

The fourth proportional to 18,767.83, 28,149.65 and 4,727.85 is: 7,091.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.83 : 28,149.65 = 4,727.85 : x
  2. Step 2: Convert to fraction form
    18,767.83/28,149.65 = 4,727.85/x
  3. Step 3: Cross multiply
    18,767.83x = 28,149.65 × 4,727.85
  4. Step 4: Simplify right side
    18,767.83x = 133,087,299.11
  5. Step 5: Solve for x
    x = 133,087,299.11/18,767.83
  6. Step 6: Final answer
    x = 7,091.25

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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.