Home / 6,791.81-10,172.66-5,220.24

Finding the Fourth Proportional to 6,791.81, 10,172.66 and 5,220.24

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Solution

The fourth proportional to 6,791.81, 10,172.66 and 5,220.24 is: 7,818.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791.81 : 10,172.66 = 5,220.24 : x
  2. Step 2: Convert to fraction form
    6,791.81/10,172.66 = 5,220.24/x
  3. Step 3: Cross multiply
    6,791.81x = 10,172.66 × 5,220.24
  4. Step 4: Simplify right side
    6,791.81x = 53,103,700.54
  5. Step 5: Solve for x
    x = 53,103,700.54/6,791.81
  6. Step 6: Final answer
    x = 7,818.79

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1.5x scale

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.