Home / 7,351.92-10,143.18-4,989.96

Finding the Fourth Proportional to 7,351.92, 10,143.18 and 4,989.96

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Solution

The fourth proportional to 7,351.92, 10,143.18 and 4,989.96 is: 6,884.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.92 : 10,143.18 = 4,989.96 : x
  2. Step 2: Convert to fraction form
    7,351.92/10,143.18 = 4,989.96/x
  3. Step 3: Cross multiply
    7,351.92x = 10,143.18 × 4,989.96
  4. Step 4: Simplify right side
    7,351.92x = 50,614,062.47
  5. Step 5: Solve for x
    x = 50,614,062.47/7,351.92
  6. Step 6: Final answer
    x = 6,884.47

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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.