Home / 13,772.13-20,651.44-4,409.74

Finding the Fourth Proportional to 13,772.13, 20,651.44 and 4,409.74

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Solution

The fourth proportional to 13,772.13, 20,651.44 and 4,409.74 is: 6,612.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.13 : 20,651.44 = 4,409.74 : x
  2. Step 2: Convert to fraction form
    13,772.13/20,651.44 = 4,409.74/x
  3. Step 3: Cross multiply
    13,772.13x = 20,651.44 × 4,409.74
  4. Step 4: Simplify right side
    13,772.13x = 91,067,481.03
  5. Step 5: Solve for x
    x = 91,067,481.03/13,772.13
  6. Step 6: Final answer
    x = 6,612.45

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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.