Home / 13,633.44-20,431.20-6,219.36

Finding the Fourth Proportional to 13,633.44, 20,431.20 and 6,219.36

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Solution

The fourth proportional to 13,633.44, 20,431.20 and 6,219.36 is: 9,320.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.44 : 20,431.20 = 6,219.36 : x
  2. Step 2: Convert to fraction form
    13,633.44/20,431.20 = 6,219.36/x
  3. Step 3: Cross multiply
    13,633.44x = 20,431.20 × 6,219.36
  4. Step 4: Simplify right side
    13,633.44x = 127,068,988.03
  5. Step 5: Solve for x
    x = 127,068,988.03/13,633.44
  6. Step 6: Final answer
    x = 9,320.39

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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.