Home / 11,711.70-17,566.47-3,920.58

Finding the Fourth Proportional to 11,711.70, 17,566.47 and 3,920.58

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Solution

The fourth proportional to 11,711.70, 17,566.47 and 3,920.58 is: 5,880.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.70 : 17,566.47 = 3,920.58 : x
  2. Step 2: Convert to fraction form
    11,711.70/17,566.47 = 3,920.58/x
  3. Step 3: Cross multiply
    11,711.70x = 17,566.47 × 3,920.58
  4. Step 4: Simplify right side
    11,711.70x = 68,870,750.95
  5. Step 5: Solve for x
    x = 68,870,750.95/11,711.70
  6. Step 6: Final answer
    x = 5,880.51

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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.