Home / 11,910.50-16,436.49-7,195.70

Finding the Fourth Proportional to 11,910.50, 16,436.49 and 7,195.70

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Solution

The fourth proportional to 11,910.50, 16,436.49 and 7,195.70 is: 9,930.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.50 : 16,436.49 = 7,195.70 : x
  2. Step 2: Convert to fraction form
    11,910.50/16,436.49 = 7,195.70/x
  3. Step 3: Cross multiply
    11,910.50x = 16,436.49 × 7,195.70
  4. Step 4: Simplify right side
    11,910.50x = 118,272,051.09
  5. Step 5: Solve for x
    x = 118,272,051.09/11,910.50
  6. Step 6: Final answer
    x = 9,930.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.