Home / 7,213.76-9,954.96-4,069.92

Finding the Fourth Proportional to 7,213.76, 9,954.96 and 4,069.92

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Solution

The fourth proportional to 7,213.76, 9,954.96 and 4,069.92 is: 5,616.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.76 : 9,954.96 = 4,069.92 : x
  2. Step 2: Convert to fraction form
    7,213.76/9,954.96 = 4,069.92/x
  3. Step 3: Cross multiply
    7,213.76x = 9,954.96 × 4,069.92
  4. Step 4: Simplify right side
    7,213.76x = 40,515,890.80
  5. Step 5: Solve for x
    x = 40,515,890.80/7,213.76
  6. Step 6: Final answer
    x = 5,616.47

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1.5x scale

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.