Home / 12,515.19-18,769.98-3,748.98

Finding the Fourth Proportional to 12,515.19, 18,769.98 and 3,748.98

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Solution

The fourth proportional to 12,515.19, 18,769.98 and 3,748.98 is: 5,622.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.19 : 18,769.98 = 3,748.98 : x
  2. Step 2: Convert to fraction form
    12,515.19/18,769.98 = 3,748.98/x
  3. Step 3: Cross multiply
    12,515.19x = 18,769.98 × 3,748.98
  4. Step 4: Simplify right side
    12,515.19x = 70,368,279.62
  5. Step 5: Solve for x
    x = 70,368,279.62/12,515.19
  6. Step 6: Final answer
    x = 5,622.63

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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.