Home / 11,880.76-17,822.96-4,087.76

Finding the Fourth Proportional to 11,880.76, 17,822.96 and 4,087.76

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Solution

The fourth proportional to 11,880.76, 17,822.96 and 4,087.76 is: 6,132.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,880.76 : 17,822.96 = 4,087.76 : x
  2. Step 2: Convert to fraction form
    11,880.76/17,822.96 = 4,087.76/x
  3. Step 3: Cross multiply
    11,880.76x = 17,822.96 × 4,087.76
  4. Step 4: Simplify right side
    11,880.76x = 72,855,982.97
  5. Step 5: Solve for x
    x = 72,855,982.97/11,880.76
  6. Step 6: Final answer
    x = 6,132.27

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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.