Home / 13,504.82-20,260.65-4,145.31

Finding the Fourth Proportional to 13,504.82, 20,260.65 and 4,145.31

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Solution

The fourth proportional to 13,504.82, 20,260.65 and 4,145.31 is: 6,219.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,504.82 : 20,260.65 = 4,145.31 : x
  2. Step 2: Convert to fraction form
    13,504.82/20,260.65 = 4,145.31/x
  3. Step 3: Cross multiply
    13,504.82x = 20,260.65 × 4,145.31
  4. Step 4: Simplify right side
    13,504.82x = 83,986,667.28
  5. Step 5: Solve for x
    x = 83,986,667.28/13,504.82
  6. Step 6: Final answer
    x = 6,219.02

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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.