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Finding the Fourth Proportional to 7,255.56, 10,012.68 and 3,943.56

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Solution

The fourth proportional to 7,255.56, 10,012.68 and 3,943.56 is: 5,442.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,255.56 : 10,012.68 = 3,943.56 : x
  2. Step 2: Convert to fraction form
    7,255.56/10,012.68 = 3,943.56/x
  3. Step 3: Cross multiply
    7,255.56x = 10,012.68 × 3,943.56
  4. Step 4: Simplify right side
    7,255.56x = 39,485,604.34
  5. Step 5: Solve for x
    x = 39,485,604.34/7,255.56
  6. Step 6: Final answer
    x = 5,442.12

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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.