Home / 13,890.74-19,169.24-7,922.25

Finding the Fourth Proportional to 13,890.74, 19,169.24 and 7,922.25

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Solution

The fourth proportional to 13,890.74, 19,169.24 and 7,922.25 is: 10,932.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.74 : 19,169.24 = 7,922.25 : x
  2. Step 2: Convert to fraction form
    13,890.74/19,169.24 = 7,922.25/x
  3. Step 3: Cross multiply
    13,890.74x = 19,169.24 × 7,922.25
  4. Step 4: Simplify right side
    13,890.74x = 151,863,471.98
  5. Step 5: Solve for x
    x = 151,863,471.98/13,890.74
  6. Step 6: Final answer
    x = 10,932.72

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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.