Home / 19,204.68-28,788.12-8,119.02

Finding the Fourth Proportional to 19,204.68, 28,788.12 and 8,119.02

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Solution

The fourth proportional to 19,204.68, 28,788.12 and 8,119.02 is: 12,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,204.68 : 28,788.12 = 8,119.02 : x
  2. Step 2: Convert to fraction form
    19,204.68/28,788.12 = 8,119.02/x
  3. Step 3: Cross multiply
    19,204.68x = 28,788.12 × 8,119.02
  4. Step 4: Simplify right side
    19,204.68x = 233,731,322.04
  5. Step 5: Solve for x
    x = 233,731,322.04/19,204.68
  6. Step 6: Final answer
    x = 12,170.54

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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.