Home / 7,063.32-9,747.36-3,919.80

Finding the Fourth Proportional to 7,063.32, 9,747.36 and 3,919.80

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Solution

The fourth proportional to 7,063.32, 9,747.36 and 3,919.80 is: 5,409.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,063.32 : 9,747.36 = 3,919.80 : x
  2. Step 2: Convert to fraction form
    7,063.32/9,747.36 = 3,919.80/x
  3. Step 3: Cross multiply
    7,063.32x = 9,747.36 × 3,919.80
  4. Step 4: Simplify right side
    7,063.32x = 38,207,701.73
  5. Step 5: Solve for x
    x = 38,207,701.73/7,063.32
  6. Step 6: Final answer
    x = 5,409.31

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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.