Home / 19,119.06-28,691.55-8,738.10

Finding the Fourth Proportional to 19,119.06, 28,691.55 and 8,738.10

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Solution

The fourth proportional to 19,119.06, 28,691.55 and 8,738.10 is: 13,113.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.06 : 28,691.55 = 8,738.10 : x
  2. Step 2: Convert to fraction form
    19,119.06/28,691.55 = 8,738.10/x
  3. Step 3: Cross multiply
    19,119.06x = 28,691.55 × 8,738.10
  4. Step 4: Simplify right side
    19,119.06x = 250,709,633.06
  5. Step 5: Solve for x
    x = 250,709,633.06/19,119.06
  6. Step 6: Final answer
    x = 13,113.07

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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.