Home / 9,299.34-12,822.84-6,645.78

Finding the Fourth Proportional to 9,299.34, 12,822.84 and 6,645.78

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Solution

The fourth proportional to 9,299.34, 12,822.84 and 6,645.78 is: 9,163.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,299.34 : 12,822.84 = 6,645.78 : x
  2. Step 2: Convert to fraction form
    9,299.34/12,822.84 = 6,645.78/x
  3. Step 3: Cross multiply
    9,299.34x = 12,822.84 × 6,645.78
  4. Step 4: Simplify right side
    9,299.34x = 85,217,773.62
  5. Step 5: Solve for x
    x = 85,217,773.62/9,299.34
  6. Step 6: Final answer
    x = 9,163.85

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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.