Home / 19,787.16-29,682.18-6,634.20

Finding the Fourth Proportional to 19,787.16, 29,682.18 and 6,634.20

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Solution

The fourth proportional to 19,787.16, 29,682.18 and 6,634.20 is: 9,951.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.16 : 29,682.18 = 6,634.20 : x
  2. Step 2: Convert to fraction form
    19,787.16/29,682.18 = 6,634.20/x
  3. Step 3: Cross multiply
    19,787.16x = 29,682.18 × 6,634.20
  4. Step 4: Simplify right side
    19,787.16x = 196,917,518.56
  5. Step 5: Solve for x
    x = 196,917,518.56/19,787.16
  6. Step 6: Final answer
    x = 9,951.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.