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Finding the Fourth Proportional to 8,809.22, 13,215.19 and 2,965.37

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Solution

The fourth proportional to 8,809.22, 13,215.19 and 2,965.37 is: 4,448.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.22 : 13,215.19 = 2,965.37 : x
  2. Step 2: Convert to fraction form
    8,809.22/13,215.19 = 2,965.37/x
  3. Step 3: Cross multiply
    8,809.22x = 13,215.19 × 2,965.37
  4. Step 4: Simplify right side
    8,809.22x = 39,187,913.14
  5. Step 5: Solve for x
    x = 39,187,913.14/8,809.22
  6. Step 6: Final answer
    x = 4,448.51

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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.