Home / 13,884.08-20,808.20-12,097.88

Finding the Fourth Proportional to 13,884.08, 20,808.20 and 12,097.88

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Solution

The fourth proportional to 13,884.08, 20,808.20 and 12,097.88 is: 18,131.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.08 : 20,808.20 = 12,097.88 : x
  2. Step 2: Convert to fraction form
    13,884.08/20,808.20 = 12,097.88/x
  3. Step 3: Cross multiply
    13,884.08x = 20,808.20 × 12,097.88
  4. Step 4: Simplify right side
    13,884.08x = 251,735,106.62
  5. Step 5: Solve for x
    x = 251,735,106.62/13,884.08
  6. Step 6: Final answer
    x = 18,131.21

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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.