Home / 7,213.45-9,954.55-4,069.64

Finding the Fourth Proportional to 7,213.45, 9,954.55 and 4,069.64

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Solution

The fourth proportional to 7,213.45, 9,954.55 and 4,069.64 is: 5,616.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.45 : 9,954.55 = 4,069.64 : x
  2. Step 2: Convert to fraction form
    7,213.45/9,954.55 = 4,069.64/x
  3. Step 3: Cross multiply
    7,213.45x = 9,954.55 × 4,069.64
  4. Step 4: Simplify right side
    7,213.45x = 40,511,434.86
  5. Step 5: Solve for x
    x = 40,511,434.86/7,213.45
  6. Step 6: Final answer
    x = 5,616.10

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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.