Home / 11,215.10-16,804.11-7,922.54

Finding the Fourth Proportional to 11,215.10, 16,804.11 and 7,922.54

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Solution

The fourth proportional to 11,215.10, 16,804.11 and 7,922.54 is: 11,870.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.10 : 16,804.11 = 7,922.54 : x
  2. Step 2: Convert to fraction form
    11,215.10/16,804.11 = 7,922.54/x
  3. Step 3: Cross multiply
    11,215.10x = 16,804.11 × 7,922.54
  4. Step 4: Simplify right side
    11,215.10x = 133,131,233.64
  5. Step 5: Solve for x
    x = 133,131,233.64/11,215.10
  6. Step 6: Final answer
    x = 11,870.71

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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.