Home / 7,350.05-10,143.08-3,992.83

Finding the Fourth Proportional to 7,350.05, 10,143.08 and 3,992.83

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Solution

The fourth proportional to 7,350.05, 10,143.08 and 3,992.83 is: 5,510.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,350.05 : 10,143.08 = 3,992.83 : x
  2. Step 2: Convert to fraction form
    7,350.05/10,143.08 = 3,992.83/x
  3. Step 3: Cross multiply
    7,350.05x = 10,143.08 × 3,992.83
  4. Step 4: Simplify right side
    7,350.05x = 40,499,594.12
  5. Step 5: Solve for x
    x = 40,499,594.12/7,350.05
  6. Step 6: Final answer
    x = 5,510.12

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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.