Home / 13,144.08-19,716.12-3,909.36

Finding the Fourth Proportional to 13,144.08, 19,716.12 and 3,909.36

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Solution

The fourth proportional to 13,144.08, 19,716.12 and 3,909.36 is: 5,864.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,144.08 : 19,716.12 = 3,909.36 : x
  2. Step 2: Convert to fraction form
    13,144.08/19,716.12 = 3,909.36/x
  3. Step 3: Cross multiply
    13,144.08x = 19,716.12 × 3,909.36
  4. Step 4: Simplify right side
    13,144.08x = 77,077,410.88
  5. Step 5: Solve for x
    x = 77,077,410.88/13,144.08
  6. Step 6: Final answer
    x = 5,864.04

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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.