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Finding the Fourth Proportional to 7,213.07, 9,954 and 4,069.23

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Solution

The fourth proportional to 7,213.07, 9,954 and 4,069.23 is: 5,615.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.07 : 9,954 = 4,069.23 : x
  2. Step 2: Convert to fraction form
    7,213.07/9,954 = 4,069.23/x
  3. Step 3: Cross multiply
    7,213.07x = 9,954 × 4,069.23
  4. Step 4: Simplify right side
    7,213.07x = 40,505,115.42
  5. Step 5: Solve for x
    x = 40,505,115.42/7,213.07
  6. Step 6: Final answer
    x = 5,615.52

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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.