Home / 7,422.56-10,243.38-4,065.57

Finding the Fourth Proportional to 7,422.56, 10,243.38 and 4,065.57

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Solution

The fourth proportional to 7,422.56, 10,243.38 and 4,065.57 is: 5,610.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.56 : 10,243.38 = 4,065.57 : x
  2. Step 2: Convert to fraction form
    7,422.56/10,243.38 = 4,065.57/x
  3. Step 3: Cross multiply
    7,422.56x = 10,243.38 × 4,065.57
  4. Step 4: Simplify right side
    7,422.56x = 41,645,178.43
  5. Step 5: Solve for x
    x = 41,645,178.43/7,422.56
  6. Step 6: Final answer
    x = 5,610.63

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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.