Home / 11,276.40-16,911.36-3,880.56

Finding the Fourth Proportional to 11,276.40, 16,911.36 and 3,880.56

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Solution

The fourth proportional to 11,276.40, 16,911.36 and 3,880.56 is: 5,819.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,276.40 : 16,911.36 = 3,880.56 : x
  2. Step 2: Convert to fraction form
    11,276.40/16,911.36 = 3,880.56/x
  3. Step 3: Cross multiply
    11,276.40x = 16,911.36 × 3,880.56
  4. Step 4: Simplify right side
    11,276.40x = 65,625,547.16
  5. Step 5: Solve for x
    x = 65,625,547.16/11,276.40
  6. Step 6: Final answer
    x = 5,819.73

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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.