Home / 12,701.41-17,516.52-8,220.49

Finding the Fourth Proportional to 12,701.41, 17,516.52 and 8,220.49

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Solution

The fourth proportional to 12,701.41, 17,516.52 and 8,220.49 is: 11,336.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,701.41 : 17,516.52 = 8,220.49 : x
  2. Step 2: Convert to fraction form
    12,701.41/17,516.52 = 8,220.49/x
  3. Step 3: Cross multiply
    12,701.41x = 17,516.52 × 8,220.49
  4. Step 4: Simplify right side
    12,701.41x = 143,994,333.70
  5. Step 5: Solve for x
    x = 143,994,333.70/12,701.41
  6. Step 6: Final answer
    x = 11,336.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.