Home / 11,630.49-16,061.44-9,942.09

Finding the Fourth Proportional to 11,630.49, 16,061.44 and 9,942.09

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Solution

The fourth proportional to 11,630.49, 16,061.44 and 9,942.09 is: 13,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,630.49 : 16,061.44 = 9,942.09 : x
  2. Step 2: Convert to fraction form
    11,630.49/16,061.44 = 9,942.09/x
  3. Step 3: Cross multiply
    11,630.49x = 16,061.44 × 9,942.09
  4. Step 4: Simplify right side
    11,630.49x = 159,684,305.91
  5. Step 5: Solve for x
    x = 159,684,305.91/11,630.49
  6. Step 6: Final answer
    x = 13,729.80

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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.