Home / 7,350.55-10,143.77-3,993.33

Finding the Fourth Proportional to 7,350.55, 10,143.77 and 3,993.33

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Solution

The fourth proportional to 7,350.55, 10,143.77 and 3,993.33 is: 5,510.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,350.55 : 10,143.77 = 3,993.33 : x
  2. Step 2: Convert to fraction form
    7,350.55/10,143.77 = 3,993.33/x
  3. Step 3: Cross multiply
    7,350.55x = 10,143.77 × 3,993.33
  4. Step 4: Simplify right side
    7,350.55x = 40,507,421.05
  5. Step 5: Solve for x
    x = 40,507,421.05/7,350.55
  6. Step 6: Final answer
    x = 5,510.81

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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.