Home / 9,290.97-12,811.86-7,166.85

Finding the Fourth Proportional to 9,290.97, 12,811.86 and 7,166.85

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Solution

The fourth proportional to 9,290.97, 12,811.86 and 7,166.85 is: 9,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,290.97 : 12,811.86 = 7,166.85 : x
  2. Step 2: Convert to fraction form
    9,290.97/12,811.86 = 7,166.85/x
  3. Step 3: Cross multiply
    9,290.97x = 12,811.86 × 7,166.85
  4. Step 4: Simplify right side
    9,290.97x = 91,820,678.84
  5. Step 5: Solve for x
    x = 91,820,678.84/9,290.97
  6. Step 6: Final answer
    x = 9,882.79

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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.