Home / 7,775.06-10,731.24-5,122.70

Finding the Fourth Proportional to 7,775.06, 10,731.24 and 5,122.70

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Solution

The fourth proportional to 7,775.06, 10,731.24 and 5,122.70 is: 7,070.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.06 : 10,731.24 = 5,122.70 : x
  2. Step 2: Convert to fraction form
    7,775.06/10,731.24 = 5,122.70/x
  3. Step 3: Cross multiply
    7,775.06x = 10,731.24 × 5,122.70
  4. Step 4: Simplify right side
    7,775.06x = 54,972,923.15
  5. Step 5: Solve for x
    x = 54,972,923.15/7,775.06
  6. Step 6: Final answer
    x = 7,070.42

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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.