Home / 13,631.56-20,433.66-8,706.76

Finding the Fourth Proportional to 13,631.56, 20,433.66 and 8,706.76

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Solution

The fourth proportional to 13,631.56, 20,433.66 and 8,706.76 is: 13,051.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.56 : 20,433.66 = 8,706.76 : x
  2. Step 2: Convert to fraction form
    13,631.56/20,433.66 = 8,706.76/x
  3. Step 3: Cross multiply
    13,631.56x = 20,433.66 × 8,706.76
  4. Step 4: Simplify right side
    13,631.56x = 177,910,973.54
  5. Step 5: Solve for x
    x = 177,910,973.54/13,631.56
  6. Step 6: Final answer
    x = 13,051.40

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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.