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Finding the Fourth Proportional to 18,609.70, 27,914.55 and 5,463.40

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Solution

The fourth proportional to 18,609.70, 27,914.55 and 5,463.40 is: 8,195.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,609.70 : 27,914.55 = 5,463.40 : x
  2. Step 2: Convert to fraction form
    18,609.70/27,914.55 = 5,463.40/x
  3. Step 3: Cross multiply
    18,609.70x = 27,914.55 × 5,463.40
  4. Step 4: Simplify right side
    18,609.70x = 152,508,352.47
  5. Step 5: Solve for x
    x = 152,508,352.47/18,609.70
  6. Step 6: Final answer
    x = 8,195.10

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Similar ratio
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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.