Home / 10,887.75-16,331.40-3,498.30

Finding the Fourth Proportional to 10,887.75, 16,331.40 and 3,498.30

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Solution

The fourth proportional to 10,887.75, 16,331.40 and 3,498.30 is: 5,247.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.75 : 16,331.40 = 3,498.30 : x
  2. Step 2: Convert to fraction form
    10,887.75/16,331.40 = 3,498.30/x
  3. Step 3: Cross multiply
    10,887.75x = 16,331.40 × 3,498.30
  4. Step 4: Simplify right side
    10,887.75x = 57,132,136.62
  5. Step 5: Solve for x
    x = 57,132,136.62/10,887.75
  6. Step 6: Final answer
    x = 5,247.38

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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.