Home / 7,177.32-9,907.73-6,728.94

Finding the Fourth Proportional to 7,177.32, 9,907.73 and 6,728.94

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Solution

The fourth proportional to 7,177.32, 9,907.73 and 6,728.94 is: 9,288.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.32 : 9,907.73 = 6,728.94 : x
  2. Step 2: Convert to fraction form
    7,177.32/9,907.73 = 6,728.94/x
  3. Step 3: Cross multiply
    7,177.32x = 9,907.73 × 6,728.94
  4. Step 4: Simplify right side
    7,177.32x = 66,668,487.99
  5. Step 5: Solve for x
    x = 66,668,487.99/7,177.32
  6. Step 6: Final answer
    x = 9,288.78

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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.