Home / 19,014.92-28,512.12-8,621

Finding the Fourth Proportional to 19,014.92, 28,512.12 and 8,621

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Solution

The fourth proportional to 19,014.92, 28,512.12 and 8,621 is: 12,926.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,014.92 : 28,512.12 = 8,621 : x
  2. Step 2: Convert to fraction form
    19,014.92/28,512.12 = 8,621/x
  3. Step 3: Cross multiply
    19,014.92x = 28,512.12 × 8,621
  4. Step 4: Simplify right side
    19,014.92x = 245,802,986.52
  5. Step 5: Solve for x
    x = 245,802,986.52/19,014.92
  6. Step 6: Final answer
    x = 12,926.85

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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.