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Finding the Fourth Proportional to 12,933.22, 17,840.64 and 7,626.64

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Solution

The fourth proportional to 12,933.22, 17,840.64 and 7,626.64 is: 10,520.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,933.22 : 17,840.64 = 7,626.64 : x
  2. Step 2: Convert to fraction form
    12,933.22/17,840.64 = 7,626.64/x
  3. Step 3: Cross multiply
    12,933.22x = 17,840.64 × 7,626.64
  4. Step 4: Simplify right side
    12,933.22x = 136,064,138.65
  5. Step 5: Solve for x
    x = 136,064,138.65/12,933.22
  6. Step 6: Final answer
    x = 10,520.52

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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.