Home / 13,630.05-20,445.01-3,634.77

Finding the Fourth Proportional to 13,630.05, 20,445.01 and 3,634.77

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Solution

The fourth proportional to 13,630.05, 20,445.01 and 3,634.77 is: 5,452.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.05 : 20,445.01 = 3,634.77 : x
  2. Step 2: Convert to fraction form
    13,630.05/20,445.01 = 3,634.77/x
  3. Step 3: Cross multiply
    13,630.05x = 20,445.01 × 3,634.77
  4. Step 4: Simplify right side
    13,630.05x = 74,312,976.58
  5. Step 5: Solve for x
    x = 74,312,976.58/13,630.05
  6. Step 6: Final answer
    x = 5,452.14

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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.