Home / 13,727.50-20,531.89-8,091.79

Finding the Fourth Proportional to 13,727.50, 20,531.89 and 8,091.79

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Solution

The fourth proportional to 13,727.50, 20,531.89 and 8,091.79 is: 12,102.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.50 : 20,531.89 = 8,091.79 : x
  2. Step 2: Convert to fraction form
    13,727.50/20,531.89 = 8,091.79/x
  3. Step 3: Cross multiply
    13,727.50x = 20,531.89 × 8,091.79
  4. Step 4: Simplify right side
    13,727.50x = 166,139,742.18
  5. Step 5: Solve for x
    x = 166,139,742.18/13,727.50
  6. Step 6: Final answer
    x = 12,102.69

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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.