Home / 7,786.38-11,660.58-4,091.70

Finding the Fourth Proportional to 7,786.38, 11,660.58 and 4,091.70

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Solution

The fourth proportional to 7,786.38, 11,660.58 and 4,091.70 is: 6,127.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.38 : 11,660.58 = 4,091.70 : x
  2. Step 2: Convert to fraction form
    7,786.38/11,660.58 = 4,091.70/x
  3. Step 3: Cross multiply
    7,786.38x = 11,660.58 × 4,091.70
  4. Step 4: Simplify right side
    7,786.38x = 47,711,595.19
  5. Step 5: Solve for x
    x = 47,711,595.19/7,786.38
  6. Step 6: Final answer
    x = 6,127.57

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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.