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Finding the Fourth Proportional to 12,525.76, 17,261.76 and 8,982.82

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Solution

The fourth proportional to 12,525.76, 17,261.76 and 8,982.82 is: 12,379.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,525.76 : 17,261.76 = 8,982.82 : x
  2. Step 2: Convert to fraction form
    12,525.76/17,261.76 = 8,982.82/x
  3. Step 3: Cross multiply
    12,525.76x = 17,261.76 × 8,982.82
  4. Step 4: Simplify right side
    12,525.76x = 155,059,282.96
  5. Step 5: Solve for x
    x = 155,059,282.96/12,525.76
  6. Step 6: Final answer
    x = 12,379.23

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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.