Home / 9,122.07-12,589.64-5,144.43

Finding the Fourth Proportional to 9,122.07, 12,589.64 and 5,144.43

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Solution

The fourth proportional to 9,122.07, 12,589.64 and 5,144.43 is: 7,099.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.07 : 12,589.64 = 5,144.43 : x
  2. Step 2: Convert to fraction form
    9,122.07/12,589.64 = 5,144.43/x
  3. Step 3: Cross multiply
    9,122.07x = 12,589.64 × 5,144.43
  4. Step 4: Simplify right side
    9,122.07x = 64,766,433.03
  5. Step 5: Solve for x
    x = 64,766,433.03/9,122.07
  6. Step 6: Final answer
    x = 7,099.97

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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.