Home / 7,653.35-11,478.70-2,105.38

Finding the Fourth Proportional to 7,653.35, 11,478.70 and 2,105.38

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Solution

The fourth proportional to 7,653.35, 11,478.70 and 2,105.38 is: 3,157.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,653.35 : 11,478.70 = 2,105.38 : x
  2. Step 2: Convert to fraction form
    7,653.35/11,478.70 = 2,105.38/x
  3. Step 3: Cross multiply
    7,653.35x = 11,478.70 × 2,105.38
  4. Step 4: Simplify right side
    7,653.35x = 24,167,025.41
  5. Step 5: Solve for x
    x = 24,167,025.41/7,653.35
  6. Step 6: Final answer
    x = 3,157.71

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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.