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Finding the Fourth Proportional to 10,609.38, 15,914.07 and 4,367.79

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Solution

The fourth proportional to 10,609.38, 15,914.07 and 4,367.79 is: 6,551.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,609.38 : 15,914.07 = 4,367.79 : x
  2. Step 2: Convert to fraction form
    10,609.38/15,914.07 = 4,367.79/x
  3. Step 3: Cross multiply
    10,609.38x = 15,914.07 × 4,367.79
  4. Step 4: Simplify right side
    10,609.38x = 69,509,315.81
  5. Step 5: Solve for x
    x = 69,509,315.81/10,609.38
  6. Step 6: Final answer
    x = 6,551.69

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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.