Home / 19,964.68-29,950.62-8,278.84

Finding the Fourth Proportional to 19,964.68, 29,950.62 and 8,278.84

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Solution

The fourth proportional to 19,964.68, 29,950.62 and 8,278.84 is: 12,419.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,964.68 : 29,950.62 = 8,278.84 : x
  2. Step 2: Convert to fraction form
    19,964.68/29,950.62 = 8,278.84/x
  3. Step 3: Cross multiply
    19,964.68x = 29,950.62 × 8,278.84
  4. Step 4: Simplify right side
    19,964.68x = 247,956,390.88
  5. Step 5: Solve for x
    x = 247,956,390.88/19,964.68
  6. Step 6: Final answer
    x = 12,419.75

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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.