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Finding the Fourth Proportional to 7,199.07, 9,939.03 and 5,207.55

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Solution

The fourth proportional to 7,199.07, 9,939.03 and 5,207.55 is: 7,189.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199.07 : 9,939.03 = 5,207.55 : x
  2. Step 2: Convert to fraction form
    7,199.07/9,939.03 = 5,207.55/x
  3. Step 3: Cross multiply
    7,199.07x = 9,939.03 × 5,207.55
  4. Step 4: Simplify right side
    7,199.07x = 51,757,995.68
  5. Step 5: Solve for x
    x = 51,757,995.68/7,199.07
  6. Step 6: Final answer
    x = 7,189.54

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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.