Home / 6,756.15-10,120.79-5,288.43

Finding the Fourth Proportional to 6,756.15, 10,120.79 and 5,288.43

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Solution

The fourth proportional to 6,756.15, 10,120.79 and 5,288.43 is: 7,922.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,756.15 : 10,120.79 = 5,288.43 : x
  2. Step 2: Convert to fraction form
    6,756.15/10,120.79 = 5,288.43/x
  3. Step 3: Cross multiply
    6,756.15x = 10,120.79 × 5,288.43
  4. Step 4: Simplify right side
    6,756.15x = 53,523,102.68
  5. Step 5: Solve for x
    x = 53,523,102.68/6,756.15
  6. Step 6: Final answer
    x = 7,922.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.