Home / 11,922.53-16,450.70-7,666.92

Finding the Fourth Proportional to 11,922.53, 16,450.70 and 7,666.92

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Solution

The fourth proportional to 11,922.53, 16,450.70 and 7,666.92 is: 10,578.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.53 : 16,450.70 = 7,666.92 : x
  2. Step 2: Convert to fraction form
    11,922.53/16,450.70 = 7,666.92/x
  3. Step 3: Cross multiply
    11,922.53x = 16,450.70 × 7,666.92
  4. Step 4: Simplify right side
    11,922.53x = 126,126,162.51
  5. Step 5: Solve for x
    x = 126,126,162.51/11,922.53
  6. Step 6: Final answer
    x = 10,578.81

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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.