Home / 10,500.72-15,748.11-3,103.44

Finding the Fourth Proportional to 10,500.72, 15,748.11 and 3,103.44

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Solution

The fourth proportional to 10,500.72, 15,748.11 and 3,103.44 is: 4,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500.72 : 15,748.11 = 3,103.44 : x
  2. Step 2: Convert to fraction form
    10,500.72/15,748.11 = 3,103.44/x
  3. Step 3: Cross multiply
    10,500.72x = 15,748.11 × 3,103.44
  4. Step 4: Simplify right side
    10,500.72x = 48,873,314.50
  5. Step 5: Solve for x
    x = 48,873,314.50/10,500.72
  6. Step 6: Final answer
    x = 4,654.28

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1.5x scale

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.