Home / 10,115.58-13,958.82-6,338.64

Finding the Fourth Proportional to 10,115.58, 13,958.82 and 6,338.64

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Solution

The fourth proportional to 10,115.58, 13,958.82 and 6,338.64 is: 8,746.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.58 : 13,958.82 = 6,338.64 : x
  2. Step 2: Convert to fraction form
    10,115.58/13,958.82 = 6,338.64/x
  3. Step 3: Cross multiply
    10,115.58x = 13,958.82 × 6,338.64
  4. Step 4: Simplify right side
    10,115.58x = 88,479,934.80
  5. Step 5: Solve for x
    x = 88,479,934.80/10,115.58
  6. Step 6: Final answer
    x = 8,746.90

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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.