Home / 19,511.49-29,276.12-8,269.90

Finding the Fourth Proportional to 19,511.49, 29,276.12 and 8,269.90

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Solution

The fourth proportional to 19,511.49, 29,276.12 and 8,269.90 is: 12,408.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,511.49 : 29,276.12 = 8,269.90 : x
  2. Step 2: Convert to fraction form
    19,511.49/29,276.12 = 8,269.90/x
  3. Step 3: Cross multiply
    19,511.49x = 29,276.12 × 8,269.90
  4. Step 4: Simplify right side
    19,511.49x = 242,110,543.44
  5. Step 5: Solve for x
    x = 242,110,543.44/19,511.49
  6. Step 6: Final answer
    x = 12,408.62

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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.