Home / 13,644.87-18,829.50-7,676.86

Finding the Fourth Proportional to 13,644.87, 18,829.50 and 7,676.86

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Solution

The fourth proportional to 13,644.87, 18,829.50 and 7,676.86 is: 10,593.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.87 : 18,829.50 = 7,676.86 : x
  2. Step 2: Convert to fraction form
    13,644.87/18,829.50 = 7,676.86/x
  3. Step 3: Cross multiply
    13,644.87x = 18,829.50 × 7,676.86
  4. Step 4: Simplify right side
    13,644.87x = 144,551,506.64
  5. Step 5: Solve for x
    x = 144,551,506.64/13,644.87
  6. Step 6: Final answer
    x = 10,593.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.