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Finding the Fourth Proportional to 17,919.72, 26,879.58 and 9,763.56

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Solution

The fourth proportional to 17,919.72, 26,879.58 and 9,763.56 is: 14,645.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,919.72 : 26,879.58 = 9,763.56 : x
  2. Step 2: Convert to fraction form
    17,919.72/26,879.58 = 9,763.56/x
  3. Step 3: Cross multiply
    17,919.72x = 26,879.58 × 9,763.56
  4. Step 4: Simplify right side
    17,919.72x = 262,440,392.10
  5. Step 5: Solve for x
    x = 262,440,392.10/17,919.72
  6. Step 6: Final answer
    x = 14,645.34

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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.