Home / 9,091.38-13,640.94-4,711.92

Finding the Fourth Proportional to 9,091.38, 13,640.94 and 4,711.92

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Solution

The fourth proportional to 9,091.38, 13,640.94 and 4,711.92 is: 7,069.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,091.38 : 13,640.94 = 4,711.92 : x
  2. Step 2: Convert to fraction form
    9,091.38/13,640.94 = 4,711.92/x
  3. Step 3: Cross multiply
    9,091.38x = 13,640.94 × 4,711.92
  4. Step 4: Simplify right side
    9,091.38x = 64,275,018.00
  5. Step 5: Solve for x
    x = 64,275,018.00/9,091.38
  6. Step 6: Final answer
    x = 7,069.89

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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.