Home / 10,910.12-16,371.77-3,889.60

Finding the Fourth Proportional to 10,910.12, 16,371.77 and 3,889.60

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Solution

The fourth proportional to 10,910.12, 16,371.77 and 3,889.60 is: 5,836.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,910.12 : 16,371.77 = 3,889.60 : x
  2. Step 2: Convert to fraction form
    10,910.12/16,371.77 = 3,889.60/x
  3. Step 3: Cross multiply
    10,910.12x = 16,371.77 × 3,889.60
  4. Step 4: Simplify right side
    10,910.12x = 63,679,576.21
  5. Step 5: Solve for x
    x = 63,679,576.21/10,910.12
  6. Step 6: Final answer
    x = 5,836.75

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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.