Home / 15,748.85-21,734.64-8,676.54

Finding the Fourth Proportional to 15,748.85, 21,734.64 and 8,676.54

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Solution

The fourth proportional to 15,748.85, 21,734.64 and 8,676.54 is: 11,974.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.85 : 21,734.64 = 8,676.54 : x
  2. Step 2: Convert to fraction form
    15,748.85/21,734.64 = 8,676.54/x
  3. Step 3: Cross multiply
    15,748.85x = 21,734.64 × 8,676.54
  4. Step 4: Simplify right side
    15,748.85x = 188,581,473.35
  5. Step 5: Solve for x
    x = 188,581,473.35/15,748.85
  6. Step 6: Final answer
    x = 11,974.30

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1.5x scale

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.