Home / 13,599.96-20,400.71-3,739.02

Finding the Fourth Proportional to 13,599.96, 20,400.71 and 3,739.02

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Solution

The fourth proportional to 13,599.96, 20,400.71 and 3,739.02 is: 5,608.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.96 : 20,400.71 = 3,739.02 : x
  2. Step 2: Convert to fraction form
    13,599.96/20,400.71 = 3,739.02/x
  3. Step 3: Cross multiply
    13,599.96x = 20,400.71 × 3,739.02
  4. Step 4: Simplify right side
    13,599.96x = 76,278,644.01
  5. Step 5: Solve for x
    x = 76,278,644.01/13,599.96
  6. Step 6: Final answer
    x = 5,608.74

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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.