Home / 7,913.57-11,872.56-3,471.65

Finding the Fourth Proportional to 7,913.57, 11,872.56 and 3,471.65

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Solution

The fourth proportional to 7,913.57, 11,872.56 and 3,471.65 is: 5,208.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.57 : 11,872.56 = 3,471.65 : x
  2. Step 2: Convert to fraction form
    7,913.57/11,872.56 = 3,471.65/x
  3. Step 3: Cross multiply
    7,913.57x = 11,872.56 × 3,471.65
  4. Step 4: Simplify right side
    7,913.57x = 41,217,372.92
  5. Step 5: Solve for x
    x = 41,217,372.92/7,913.57
  6. Step 6: Final answer
    x = 5,208.44

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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.