Home / 13,506.42-20,221.49-7,166.96

Finding the Fourth Proportional to 13,506.42, 20,221.49 and 7,166.96

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Solution

The fourth proportional to 13,506.42, 20,221.49 and 7,166.96 is: 10,730.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.42 : 20,221.49 = 7,166.96 : x
  2. Step 2: Convert to fraction form
    13,506.42/20,221.49 = 7,166.96/x
  3. Step 3: Cross multiply
    13,506.42x = 20,221.49 × 7,166.96
  4. Step 4: Simplify right side
    13,506.42x = 144,926,609.97
  5. Step 5: Solve for x
    x = 144,926,609.97/13,506.42
  6. Step 6: Final answer
    x = 10,730.20

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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.