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Finding the Fourth Proportional to 12,760.44, 17,607.84 and 7,451.40

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Solution

The fourth proportional to 12,760.44, 17,607.84 and 7,451.40 is: 10,282.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,760.44 : 17,607.84 = 7,451.40 : x
  2. Step 2: Convert to fraction form
    12,760.44/17,607.84 = 7,451.40/x
  3. Step 3: Cross multiply
    12,760.44x = 17,607.84 × 7,451.40
  4. Step 4: Simplify right side
    12,760.44x = 131,203,058.98
  5. Step 5: Solve for x
    x = 131,203,058.98/12,760.44
  6. Step 6: Final answer
    x = 10,282.02

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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.