Home / 9,633.70-13,278.60-6,445.85

Finding the Fourth Proportional to 9,633.70, 13,278.60 and 6,445.85

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Solution

The fourth proportional to 9,633.70, 13,278.60 and 6,445.85 is: 8,884.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,633.70 : 13,278.60 = 6,445.85 : x
  2. Step 2: Convert to fraction form
    9,633.70/13,278.60 = 6,445.85/x
  3. Step 3: Cross multiply
    9,633.70x = 13,278.60 × 6,445.85
  4. Step 4: Simplify right side
    9,633.70x = 85,591,882.26
  5. Step 5: Solve for x
    x = 85,591,882.26/9,633.70
  6. Step 6: Final answer
    x = 8,884.64

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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.