Home / 19,786.12-29,680.32-6,637.36

Finding the Fourth Proportional to 19,786.12, 29,680.32 and 6,637.36

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Solution

The fourth proportional to 19,786.12, 29,680.32 and 6,637.36 is: 9,956.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,786.12 : 29,680.32 = 6,637.36 : x
  2. Step 2: Convert to fraction form
    19,786.12/29,680.32 = 6,637.36/x
  3. Step 3: Cross multiply
    19,786.12x = 29,680.32 × 6,637.36
  4. Step 4: Simplify right side
    19,786.12x = 196,998,968.76
  5. Step 5: Solve for x
    x = 196,998,968.76/19,786.12
  6. Step 6: Final answer
    x = 9,956.42

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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.