Home / 13,786.82-20,690.70-10,098.62

Finding the Fourth Proportional to 13,786.82, 20,690.70 and 10,098.62

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Solution

The fourth proportional to 13,786.82, 20,690.70 and 10,098.62 is: 15,155.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.82 : 20,690.70 = 10,098.62 : x
  2. Step 2: Convert to fraction form
    13,786.82/20,690.70 = 10,098.62/x
  3. Step 3: Cross multiply
    13,786.82x = 20,690.70 × 10,098.62
  4. Step 4: Simplify right side
    13,786.82x = 208,947,516.83
  5. Step 5: Solve for x
    x = 208,947,516.83/13,786.82
  6. Step 6: Final answer
    x = 15,155.60

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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.