Home / 19,944.96-29,920.99-6,618.75

Finding the Fourth Proportional to 19,944.96, 29,920.99 and 6,618.75

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Solution

The fourth proportional to 19,944.96, 29,920.99 and 6,618.75 is: 9,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,944.96 : 29,920.99 = 6,618.75 : x
  2. Step 2: Convert to fraction form
    19,944.96/29,920.99 = 6,618.75/x
  3. Step 3: Cross multiply
    19,944.96x = 29,920.99 × 6,618.75
  4. Step 4: Simplify right side
    19,944.96x = 198,039,552.56
  5. Step 5: Solve for x
    x = 198,039,552.56/19,944.96
  6. Step 6: Final answer
    x = 9,929.30

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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.