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Finding the Fourth Proportional to 18,683.95, 28,025.83 and 8,008.74

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Solution

The fourth proportional to 18,683.95, 28,025.83 and 8,008.74 is: 12,013.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683.95 : 28,025.83 = 8,008.74 : x
  2. Step 2: Convert to fraction form
    18,683.95/28,025.83 = 8,008.74/x
  3. Step 3: Cross multiply
    18,683.95x = 28,025.83 × 8,008.74
  4. Step 4: Simplify right side
    18,683.95x = 224,451,585.75
  5. Step 5: Solve for x
    x = 224,451,585.75/18,683.95
  6. Step 6: Final answer
    x = 12,013.07

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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.