Home / 12,385.03-18,583.05-5,003.90

Finding the Fourth Proportional to 12,385.03, 18,583.05 and 5,003.90

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Solution

The fourth proportional to 12,385.03, 18,583.05 and 5,003.90 is: 7,508.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385.03 : 18,583.05 = 5,003.90 : x
  2. Step 2: Convert to fraction form
    12,385.03/18,583.05 = 5,003.90/x
  3. Step 3: Cross multiply
    12,385.03x = 18,583.05 × 5,003.90
  4. Step 4: Simplify right side
    12,385.03x = 92,987,729.48
  5. Step 5: Solve for x
    x = 92,987,729.48/12,385.03
  6. Step 6: Final answer
    x = 7,508.08

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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.