Home / 11,278.31-16,915.77-3,882.60

Finding the Fourth Proportional to 11,278.31, 16,915.77 and 3,882.60

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Solution

The fourth proportional to 11,278.31, 16,915.77 and 3,882.60 is: 5,823.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.31 : 16,915.77 = 3,882.60 : x
  2. Step 2: Convert to fraction form
    11,278.31/16,915.77 = 3,882.60/x
  3. Step 3: Cross multiply
    11,278.31x = 16,915.77 × 3,882.60
  4. Step 4: Simplify right side
    11,278.31x = 65,677,168.60
  5. Step 5: Solve for x
    x = 65,677,168.60/11,278.31
  6. Step 6: Final answer
    x = 5,823.32

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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.