Home / 7,786.59-11,678.13-2,238.70

Finding the Fourth Proportional to 7,786.59, 11,678.13 and 2,238.70

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Solution

The fourth proportional to 7,786.59, 11,678.13 and 2,238.70 is: 3,357.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.59 : 11,678.13 = 2,238.70 : x
  2. Step 2: Convert to fraction form
    7,786.59/11,678.13 = 2,238.70/x
  3. Step 3: Cross multiply
    7,786.59x = 11,678.13 × 2,238.70
  4. Step 4: Simplify right side
    7,786.59x = 26,143,829.63
  5. Step 5: Solve for x
    x = 26,143,829.63/7,786.59
  6. Step 6: Final answer
    x = 3,357.55

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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.