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Finding the Fourth Proportional to 18,667.83, 28,000.18 and 6,183.77

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Solution

The fourth proportional to 18,667.83, 28,000.18 and 6,183.77 is: 9,275.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667.83 : 28,000.18 = 6,183.77 : x
  2. Step 2: Convert to fraction form
    18,667.83/28,000.18 = 6,183.77/x
  3. Step 3: Cross multiply
    18,667.83x = 28,000.18 × 6,183.77
  4. Step 4: Simplify right side
    18,667.83x = 173,146,642.16
  5. Step 5: Solve for x
    x = 173,146,642.16/18,667.83
  6. Step 6: Final answer
    x = 9,275.13

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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.