Home / 13,614.08-20,418.88-8,451.84

Finding the Fourth Proportional to 13,614.08, 20,418.88 and 8,451.84

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Solution

The fourth proportional to 13,614.08, 20,418.88 and 8,451.84 is: 12,676.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.08 : 20,418.88 = 8,451.84 : x
  2. Step 2: Convert to fraction form
    13,614.08/20,418.88 = 8,451.84/x
  3. Step 3: Cross multiply
    13,614.08x = 20,418.88 × 8,451.84
  4. Step 4: Simplify right side
    13,614.08x = 172,577,106.74
  5. Step 5: Solve for x
    x = 172,577,106.74/13,614.08
  6. Step 6: Final answer
    x = 12,676.37

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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.