Home / 18,379.47-25,378.20-12,010.44

Finding the Fourth Proportional to 18,379.47, 25,378.20 and 12,010.44

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Solution

The fourth proportional to 18,379.47, 25,378.20 and 12,010.44 is: 16,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.47 : 25,378.20 = 12,010.44 : x
  2. Step 2: Convert to fraction form
    18,379.47/25,378.20 = 12,010.44/x
  3. Step 3: Cross multiply
    18,379.47x = 25,378.20 × 12,010.44
  4. Step 4: Simplify right side
    18,379.47x = 304,803,348.41
  5. Step 5: Solve for x
    x = 304,803,348.41/18,379.47
  6. Step 6: Final answer
    x = 16,583.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.