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Finding the Fourth Proportional to 18,613.70, 27,914.62 and 6,130.95

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Solution

The fourth proportional to 18,613.70, 27,914.62 and 6,130.95 is: 9,194.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.70 : 27,914.62 = 6,130.95 : x
  2. Step 2: Convert to fraction form
    18,613.70/27,914.62 = 6,130.95/x
  3. Step 3: Cross multiply
    18,613.70x = 27,914.62 × 6,130.95
  4. Step 4: Simplify right side
    18,613.70x = 171,143,139.49
  5. Step 5: Solve for x
    x = 171,143,139.49/18,613.70
  6. Step 6: Final answer
    x = 9,194.47

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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.