Home / 15,749.87-21,734.30-8,676.41

Finding the Fourth Proportional to 15,749.87, 21,734.30 and 8,676.41

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Solution

The fourth proportional to 15,749.87, 21,734.30 and 8,676.41 is: 11,973.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,749.87 : 21,734.30 = 8,676.41 : x
  2. Step 2: Convert to fraction form
    15,749.87/21,734.30 = 8,676.41/x
  3. Step 3: Cross multiply
    15,749.87x = 21,734.30 × 8,676.41
  4. Step 4: Simplify right side
    15,749.87x = 188,575,654.48
  5. Step 5: Solve for x
    x = 188,575,654.48/15,749.87
  6. Step 6: Final answer
    x = 11,973.16

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