Home / 12,682.20-17,502.30-7,092.12

Finding the Fourth Proportional to 12,682.20, 17,502.30 and 7,092.12

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Solution

The fourth proportional to 12,682.20, 17,502.30 and 7,092.12 is: 9,787.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,682.20 : 17,502.30 = 7,092.12 : x
  2. Step 2: Convert to fraction form
    12,682.20/17,502.30 = 7,092.12/x
  3. Step 3: Cross multiply
    12,682.20x = 17,502.30 × 7,092.12
  4. Step 4: Simplify right side
    12,682.20x = 124,128,411.88
  5. Step 5: Solve for x
    x = 124,128,411.88/12,682.20
  6. Step 6: Final answer
    x = 9,787.61

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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.