Home / 13,409.96-20,116.38-5,619.56

Finding the Fourth Proportional to 13,409.96, 20,116.38 and 5,619.56

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Solution

The fourth proportional to 13,409.96, 20,116.38 and 5,619.56 is: 8,429.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.96 : 20,116.38 = 5,619.56 : x
  2. Step 2: Convert to fraction form
    13,409.96/20,116.38 = 5,619.56/x
  3. Step 3: Cross multiply
    13,409.96x = 20,116.38 × 5,619.56
  4. Step 4: Simplify right side
    13,409.96x = 113,045,204.39
  5. Step 5: Solve for x
    x = 113,045,204.39/13,409.96
  6. Step 6: Final answer
    x = 8,429.94

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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.