Home / 13,690.32-20,536.80-6,296.85

Finding the Fourth Proportional to 13,690.32, 20,536.80 and 6,296.85

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Solution

The fourth proportional to 13,690.32, 20,536.80 and 6,296.85 is: 9,445.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.32 : 20,536.80 = 6,296.85 : x
  2. Step 2: Convert to fraction form
    13,690.32/20,536.80 = 6,296.85/x
  3. Step 3: Cross multiply
    13,690.32x = 20,536.80 × 6,296.85
  4. Step 4: Simplify right side
    13,690.32x = 129,317,149.08
  5. Step 5: Solve for x
    x = 129,317,149.08/13,690.32
  6. Step 6: Final answer
    x = 9,445.88

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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.