Home / 7,350.79-10,143.35-4,163.45

Finding the Fourth Proportional to 7,350.79, 10,143.35 and 4,163.45

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Solution

The fourth proportional to 7,350.79, 10,143.35 and 4,163.45 is: 5,745.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,350.79 : 10,143.35 = 4,163.45 : x
  2. Step 2: Convert to fraction form
    7,350.79/10,143.35 = 4,163.45/x
  3. Step 3: Cross multiply
    7,350.79x = 10,143.35 × 4,163.45
  4. Step 4: Simplify right side
    7,350.79x = 42,231,286.35
  5. Step 5: Solve for x
    x = 42,231,286.35/7,350.79
  6. Step 6: Final answer
    x = 5,745.14

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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.