Home / 17,772.18-26,643.87-7,391.70

Finding the Fourth Proportional to 17,772.18, 26,643.87 and 7,391.70

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Solution

The fourth proportional to 17,772.18, 26,643.87 and 7,391.70 is: 11,081.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,772.18 : 26,643.87 = 7,391.70 : x
  2. Step 2: Convert to fraction form
    17,772.18/26,643.87 = 7,391.70/x
  3. Step 3: Cross multiply
    17,772.18x = 26,643.87 × 7,391.70
  4. Step 4: Simplify right side
    17,772.18x = 196,943,493.88
  5. Step 5: Solve for x
    x = 196,943,493.88/17,772.18
  6. Step 6: Final answer
    x = 11,081.56

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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.