Home / 17,922.14-26,890.57-7,921.60

Finding the Fourth Proportional to 17,922.14, 26,890.57 and 7,921.60

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Solution

The fourth proportional to 17,922.14, 26,890.57 and 7,921.60 is: 11,885.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,922.14 : 26,890.57 = 7,921.60 : x
  2. Step 2: Convert to fraction form
    17,922.14/26,890.57 = 7,921.60/x
  3. Step 3: Cross multiply
    17,922.14x = 26,890.57 × 7,921.60
  4. Step 4: Simplify right side
    17,922.14x = 213,016,388.69
  5. Step 5: Solve for x
    x = 213,016,388.69/17,922.14
  6. Step 6: Final answer
    x = 11,885.65

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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.