Home / 13,455.90-20,194.30-9,324.88

Finding the Fourth Proportional to 13,455.90, 20,194.30 and 9,324.88

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Solution

The fourth proportional to 13,455.90, 20,194.30 and 9,324.88 is: 13,994.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.90 : 20,194.30 = 9,324.88 : x
  2. Step 2: Convert to fraction form
    13,455.90/20,194.30 = 9,324.88/x
  3. Step 3: Cross multiply
    13,455.90x = 20,194.30 × 9,324.88
  4. Step 4: Simplify right side
    13,455.90x = 188,309,424.18
  5. Step 5: Solve for x
    x = 188,309,424.18/13,455.90
  6. Step 6: Final answer
    x = 13,994.56

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1.5x scale

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.