Home / 13,873.82-20,808.63-5,106.65

Finding the Fourth Proportional to 13,873.82, 20,808.63 and 5,106.65

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Solution

The fourth proportional to 13,873.82, 20,808.63 and 5,106.65 is: 7,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873.82 : 20,808.63 = 5,106.65 : x
  2. Step 2: Convert to fraction form
    13,873.82/20,808.63 = 5,106.65/x
  3. Step 3: Cross multiply
    13,873.82x = 20,808.63 × 5,106.65
  4. Step 4: Simplify right side
    13,873.82x = 106,262,286.35
  5. Step 5: Solve for x
    x = 106,262,286.35/13,873.82
  6. Step 6: Final answer
    x = 7,659.20

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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.