Home / 7,063.21-9,747.39-3,919.60

Finding the Fourth Proportional to 7,063.21, 9,747.39 and 3,919.60

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Solution

The fourth proportional to 7,063.21, 9,747.39 and 3,919.60 is: 5,409.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,063.21 : 9,747.39 = 3,919.60 : x
  2. Step 2: Convert to fraction form
    7,063.21/9,747.39 = 3,919.60/x
  3. Step 3: Cross multiply
    7,063.21x = 9,747.39 × 3,919.60
  4. Step 4: Simplify right side
    7,063.21x = 38,205,869.84
  5. Step 5: Solve for x
    x = 38,205,869.84/7,063.21
  6. Step 6: Final answer
    x = 5,409.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.