Home / 11,910.40-17,861.02-5,665.60

Finding the Fourth Proportional to 11,910.40, 17,861.02 and 5,665.60

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Solution

The fourth proportional to 11,910.40, 17,861.02 and 5,665.60 is: 8,496.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.40 : 17,861.02 = 5,665.60 : x
  2. Step 2: Convert to fraction form
    11,910.40/17,861.02 = 5,665.60/x
  3. Step 3: Cross multiply
    11,910.40x = 17,861.02 × 5,665.60
  4. Step 4: Simplify right side
    11,910.40x = 101,193,394.91
  5. Step 5: Solve for x
    x = 101,193,394.91/11,910.40
  6. Step 6: Final answer
    x = 8,496.22

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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.