Home / 10,500.98-15,753.92-3,480.48

Finding the Fourth Proportional to 10,500.98, 15,753.92 and 3,480.48

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Solution

The fourth proportional to 10,500.98, 15,753.92 and 3,480.48 is: 5,221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500.98 : 15,753.92 = 3,480.48 : x
  2. Step 2: Convert to fraction form
    10,500.98/15,753.92 = 3,480.48/x
  3. Step 3: Cross multiply
    10,500.98x = 15,753.92 × 3,480.48
  4. Step 4: Simplify right side
    10,500.98x = 54,831,218.02
  5. Step 5: Solve for x
    x = 54,831,218.02/10,500.98
  6. Step 6: Final answer
    x = 5,221.53

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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.