Home / 13,669.96-20,479.14-7,808.92

Finding the Fourth Proportional to 13,669.96, 20,479.14 and 7,808.92

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Solution

The fourth proportional to 13,669.96, 20,479.14 and 7,808.92 is: 11,698.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.96 : 20,479.14 = 7,808.92 : x
  2. Step 2: Convert to fraction form
    13,669.96/20,479.14 = 7,808.92/x
  3. Step 3: Cross multiply
    13,669.96x = 20,479.14 × 7,808.92
  4. Step 4: Simplify right side
    13,669.96x = 159,919,965.93
  5. Step 5: Solve for x
    x = 159,919,965.93/13,669.96
  6. Step 6: Final answer
    x = 11,698.64

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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.