Home / 15,619.98-23,374.35-12,519.90

Finding the Fourth Proportional to 15,619.98, 23,374.35 and 12,519.90

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Solution

The fourth proportional to 15,619.98, 23,374.35 and 12,519.90 is: 18,735.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.98 : 23,374.35 = 12,519.90 : x
  2. Step 2: Convert to fraction form
    15,619.98/23,374.35 = 12,519.90/x
  3. Step 3: Cross multiply
    15,619.98x = 23,374.35 × 12,519.90
  4. Step 4: Simplify right side
    15,619.98x = 292,644,524.57
  5. Step 5: Solve for x
    x = 292,644,524.57/15,619.98
  6. Step 6: Final answer
    x = 18,735.27

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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.