Home / 7,371.56-10,170.96-5,138.12

Finding the Fourth Proportional to 7,371.56, 10,170.96 and 5,138.12

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Solution

The fourth proportional to 7,371.56, 10,170.96 and 5,138.12 is: 7,089.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,371.56 : 10,170.96 = 5,138.12 : x
  2. Step 2: Convert to fraction form
    7,371.56/10,170.96 = 5,138.12/x
  3. Step 3: Cross multiply
    7,371.56x = 10,170.96 × 5,138.12
  4. Step 4: Simplify right side
    7,371.56x = 52,259,613.00
  5. Step 5: Solve for x
    x = 52,259,613.00/7,371.56
  6. Step 6: Final answer
    x = 7,089.36

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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.