Home / 12,511.87-18,773.03-5,488.26

Finding the Fourth Proportional to 12,511.87, 18,773.03 and 5,488.26

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Solution

The fourth proportional to 12,511.87, 18,773.03 and 5,488.26 is: 8,234.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.87 : 18,773.03 = 5,488.26 : x
  2. Step 2: Convert to fraction form
    12,511.87/18,773.03 = 5,488.26/x
  3. Step 3: Cross multiply
    12,511.87x = 18,773.03 × 5,488.26
  4. Step 4: Simplify right side
    12,511.87x = 103,031,212.95
  5. Step 5: Solve for x
    x = 103,031,212.95/12,511.87
  6. Step 6: Final answer
    x = 8,234.68

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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.