Home / 11,910.92-16,437.08-6,605.80

Finding the Fourth Proportional to 11,910.92, 16,437.08 and 6,605.80

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Solution

The fourth proportional to 11,910.92, 16,437.08 and 6,605.80 is: 9,116.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.92 : 16,437.08 = 6,605.80 : x
  2. Step 2: Convert to fraction form
    11,910.92/16,437.08 = 6,605.80/x
  3. Step 3: Cross multiply
    11,910.92x = 16,437.08 × 6,605.80
  4. Step 4: Simplify right side
    11,910.92x = 108,580,063.06
  5. Step 5: Solve for x
    x = 108,580,063.06/11,910.92
  6. Step 6: Final answer
    x = 9,116.01

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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.