Home / 13,961.52-20,940.12-9,065.88

Finding the Fourth Proportional to 13,961.52, 20,940.12 and 9,065.88

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Solution

The fourth proportional to 13,961.52, 20,940.12 and 9,065.88 is: 13,597.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,961.52 : 20,940.12 = 9,065.88 : x
  2. Step 2: Convert to fraction form
    13,961.52/20,940.12 = 9,065.88/x
  3. Step 3: Cross multiply
    13,961.52x = 20,940.12 × 9,065.88
  4. Step 4: Simplify right side
    13,961.52x = 189,840,615.11
  5. Step 5: Solve for x
    x = 189,840,615.11/13,961.52
  6. Step 6: Final answer
    x = 13,597.42

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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.