Home / 7,923-10,933.20-4,386

Finding the Fourth Proportional to 7,923, 10,933.20 and 4,386

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Solution

The fourth proportional to 7,923, 10,933.20 and 4,386 is: 6,052.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923 : 10,933.20 = 4,386 : x
  2. Step 2: Convert to fraction form
    7,923/10,933.20 = 4,386/x
  3. Step 3: Cross multiply
    7,923x = 10,933.20 × 4,386
  4. Step 4: Simplify right side
    7,923x = 47,953,015.20
  5. Step 5: Solve for x
    x = 47,953,015.20/7,923
  6. Step 6: Final answer
    x = 6,052.38

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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.