Home / 7,350.42-10,143.80-3,993.45

Finding the Fourth Proportional to 7,350.42, 10,143.80 and 3,993.45

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Solution

The fourth proportional to 7,350.42, 10,143.80 and 3,993.45 is: 5,511.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,350.42 : 10,143.80 = 3,993.45 : x
  2. Step 2: Convert to fraction form
    7,350.42/10,143.80 = 3,993.45/x
  3. Step 3: Cross multiply
    7,350.42x = 10,143.80 × 3,993.45
  4. Step 4: Simplify right side
    7,350.42x = 40,508,758.11
  5. Step 5: Solve for x
    x = 40,508,758.11/7,350.42
  6. Step 6: Final answer
    x = 5,511.08

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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.