Home / 7,350.12-10,143.14-3,992.94

Finding the Fourth Proportional to 7,350.12, 10,143.14 and 3,992.94

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Solution

The fourth proportional to 7,350.12, 10,143.14 and 3,992.94 is: 5,510.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,350.12 : 10,143.14 = 3,992.94 : x
  2. Step 2: Convert to fraction form
    7,350.12/10,143.14 = 3,992.94/x
  3. Step 3: Cross multiply
    7,350.12x = 10,143.14 × 3,992.94
  4. Step 4: Simplify right side
    7,350.12x = 40,500,949.43
  5. Step 5: Solve for x
    x = 40,500,949.43/7,350.12
  6. Step 6: Final answer
    x = 5,510.24

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Double scale
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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.