Home / 13,919.91-20,887.04-6,525.12

Finding the Fourth Proportional to 13,919.91, 20,887.04 and 6,525.12

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Solution

The fourth proportional to 13,919.91, 20,887.04 and 6,525.12 is: 9,791.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.91 : 20,887.04 = 6,525.12 : x
  2. Step 2: Convert to fraction form
    13,919.91/20,887.04 = 6,525.12/x
  3. Step 3: Cross multiply
    13,919.91x = 20,887.04 × 6,525.12
  4. Step 4: Simplify right side
    13,919.91x = 136,290,442.44
  5. Step 5: Solve for x
    x = 136,290,442.44/13,919.91
  6. Step 6: Final answer
    x = 9,791.04

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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.