Home / 7,647.48-11,471.21-2,100.85

Finding the Fourth Proportional to 7,647.48, 11,471.21 and 2,100.85

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Solution

The fourth proportional to 7,647.48, 11,471.21 and 2,100.85 is: 3,151.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,647.48 : 11,471.21 = 2,100.85 : x
  2. Step 2: Convert to fraction form
    7,647.48/11,471.21 = 2,100.85/x
  3. Step 3: Cross multiply
    7,647.48x = 11,471.21 × 2,100.85
  4. Step 4: Simplify right side
    7,647.48x = 24,099,291.53
  5. Step 5: Solve for x
    x = 24,099,291.53/7,647.48
  6. Step 6: Final answer
    x = 3,151.27

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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.