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Finding the Fourth Proportional to 9,479.82, 14,219.73 and 2,905.14

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Solution

The fourth proportional to 9,479.82, 14,219.73 and 2,905.14 is: 4,357.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,479.82 : 14,219.73 = 2,905.14 : x
  2. Step 2: Convert to fraction form
    9,479.82/14,219.73 = 2,905.14/x
  3. Step 3: Cross multiply
    9,479.82x = 14,219.73 × 2,905.14
  4. Step 4: Simplify right side
    9,479.82x = 41,310,306.41
  5. Step 5: Solve for x
    x = 41,310,306.41/9,479.82
  6. Step 6: Final answer
    x = 4,357.71

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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.