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Finding the Fourth Proportional to 18,630.83, 27,949.68 and 6,151.71

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Solution

The fourth proportional to 18,630.83, 27,949.68 and 6,151.71 is: 9,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630.83 : 27,949.68 = 6,151.71 : x
  2. Step 2: Convert to fraction form
    18,630.83/27,949.68 = 6,151.71/x
  3. Step 3: Cross multiply
    18,630.83x = 27,949.68 × 6,151.71
  4. Step 4: Simplify right side
    18,630.83x = 171,938,325.95
  5. Step 5: Solve for x
    x = 171,938,325.95/18,630.83
  6. Step 6: Final answer
    x = 9,228.70

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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.