Home / 7,180.80-9,906.70-5,296.87

Finding the Fourth Proportional to 7,180.80, 9,906.70 and 5,296.87

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Solution

The fourth proportional to 7,180.80, 9,906.70 and 5,296.87 is: 7,307.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.80 : 9,906.70 = 5,296.87 : x
  2. Step 2: Convert to fraction form
    7,180.80/9,906.70 = 5,296.87/x
  3. Step 3: Cross multiply
    7,180.80x = 9,906.70 × 5,296.87
  4. Step 4: Simplify right side
    7,180.80x = 52,474,502.03
  5. Step 5: Solve for x
    x = 52,474,502.03/7,180.80
  6. Step 6: Final answer
    x = 7,307.61

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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.