Home / 11,097.30-16,645.32-7,991.76

Finding the Fourth Proportional to 11,097.30, 16,645.32 and 7,991.76

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Solution

The fourth proportional to 11,097.30, 16,645.32 and 7,991.76 is: 11,987.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,097.30 : 16,645.32 = 7,991.76 : x
  2. Step 2: Convert to fraction form
    11,097.30/16,645.32 = 7,991.76/x
  3. Step 3: Cross multiply
    11,097.30x = 16,645.32 × 7,991.76
  4. Step 4: Simplify right side
    11,097.30x = 133,025,402.56
  5. Step 5: Solve for x
    x = 133,025,402.56/11,097.30
  6. Step 6: Final answer
    x = 11,987.19

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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.