Home / 12,453.20-17,185.43-6,787.83

Finding the Fourth Proportional to 12,453.20, 17,185.43 and 6,787.83

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Solution

The fourth proportional to 12,453.20, 17,185.43 and 6,787.83 is: 9,367.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453.20 : 17,185.43 = 6,787.83 : x
  2. Step 2: Convert to fraction form
    12,453.20/17,185.43 = 6,787.83/x
  3. Step 3: Cross multiply
    12,453.20x = 17,185.43 × 6,787.83
  4. Step 4: Simplify right side
    12,453.20x = 116,651,820.28
  5. Step 5: Solve for x
    x = 116,651,820.28/12,453.20
  6. Step 6: Final answer
    x = 9,367.21

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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.