Home / 12,508.50-18,763.38-3,743.50

Finding the Fourth Proportional to 12,508.50, 18,763.38 and 3,743.50

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Solution

The fourth proportional to 12,508.50, 18,763.38 and 3,743.50 is: 5,615.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,508.50 : 18,763.38 = 3,743.50 : x
  2. Step 2: Convert to fraction form
    12,508.50/18,763.38 = 3,743.50/x
  3. Step 3: Cross multiply
    12,508.50x = 18,763.38 × 3,743.50
  4. Step 4: Simplify right side
    12,508.50x = 70,240,713.03
  5. Step 5: Solve for x
    x = 70,240,713.03/12,508.50
  6. Step 6: Final answer
    x = 5,615.44

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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.