Home / 13,829.85-20,743.40-5,507.63

Finding the Fourth Proportional to 13,829.85, 20,743.40 and 5,507.63

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Solution

The fourth proportional to 13,829.85, 20,743.40 and 5,507.63 is: 8,260.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.85 : 20,743.40 = 5,507.63 : x
  2. Step 2: Convert to fraction form
    13,829.85/20,743.40 = 5,507.63/x
  3. Step 3: Cross multiply
    13,829.85x = 20,743.40 × 5,507.63
  4. Step 4: Simplify right side
    13,829.85x = 114,246,840.89
  5. Step 5: Solve for x
    x = 114,246,840.89/13,829.85
  6. Step 6: Final answer
    x = 8,260.89

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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.