Home / 11,809.81-17,716.34-5,235.85

Finding the Fourth Proportional to 11,809.81, 17,716.34 and 5,235.85

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Solution

The fourth proportional to 11,809.81, 17,716.34 and 5,235.85 is: 7,854.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809.81 : 17,716.34 = 5,235.85 : x
  2. Step 2: Convert to fraction form
    11,809.81/17,716.34 = 5,235.85/x
  3. Step 3: Cross multiply
    11,809.81x = 17,716.34 × 5,235.85
  4. Step 4: Simplify right side
    11,809.81x = 92,760,098.79
  5. Step 5: Solve for x
    x = 92,760,098.79/11,809.81
  6. Step 6: Final answer
    x = 7,854.50

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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.