Home / 13,740.75-20,627.56-8,196.70

Finding the Fourth Proportional to 13,740.75, 20,627.56 and 8,196.70

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Solution

The fourth proportional to 13,740.75, 20,627.56 and 8,196.70 is: 12,304.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.75 : 20,627.56 = 8,196.70 : x
  2. Step 2: Convert to fraction form
    13,740.75/20,627.56 = 8,196.70/x
  3. Step 3: Cross multiply
    13,740.75x = 20,627.56 × 8,196.70
  4. Step 4: Simplify right side
    13,740.75x = 169,077,976.42
  5. Step 5: Solve for x
    x = 169,077,976.42/13,740.75
  6. Step 6: Final answer
    x = 12,304.86

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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.