Home / 11,991.12-16,552.80-7,276.92

Finding the Fourth Proportional to 11,991.12, 16,552.80 and 7,276.92

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Solution

The fourth proportional to 11,991.12, 16,552.80 and 7,276.92 is: 10,045.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991.12 : 16,552.80 = 7,276.92 : x
  2. Step 2: Convert to fraction form
    11,991.12/16,552.80 = 7,276.92/x
  3. Step 3: Cross multiply
    11,991.12x = 16,552.80 × 7,276.92
  4. Step 4: Simplify right side
    11,991.12x = 120,453,401.38
  5. Step 5: Solve for x
    x = 120,453,401.38/11,991.12
  6. Step 6: Final answer
    x = 10,045.22

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Double scale
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Similar ratio
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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.