Home / 11,711.58-17,567.28-3,920.31

Finding the Fourth Proportional to 11,711.58, 17,567.28 and 3,920.31

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Solution

The fourth proportional to 11,711.58, 17,567.28 and 3,920.31 is: 5,880.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.58 : 17,567.28 = 3,920.31 : x
  2. Step 2: Convert to fraction form
    11,711.58/17,567.28 = 3,920.31/x
  3. Step 3: Cross multiply
    11,711.58x = 17,567.28 × 3,920.31
  4. Step 4: Simplify right side
    11,711.58x = 68,869,183.46
  5. Step 5: Solve for x
    x = 68,869,183.46/11,711.58
  6. Step 6: Final answer
    x = 5,880.43

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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.