Home / 13,786.95-20,690.86-10,098.77

Finding the Fourth Proportional to 13,786.95, 20,690.86 and 10,098.77

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Solution

The fourth proportional to 13,786.95, 20,690.86 and 10,098.77 is: 15,155.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.95 : 20,690.86 = 10,098.77 : x
  2. Step 2: Convert to fraction form
    13,786.95/20,690.86 = 10,098.77/x
  3. Step 3: Cross multiply
    13,786.95x = 20,690.86 × 10,098.77
  4. Step 4: Simplify right side
    13,786.95x = 208,952,107.54
  5. Step 5: Solve for x
    x = 208,952,107.54/13,786.95
  6. Step 6: Final answer
    x = 15,155.79

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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.