Home / 7,519.78-10,378.56-4,377.82

Finding the Fourth Proportional to 7,519.78, 10,378.56 and 4,377.82

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Solution

The fourth proportional to 7,519.78, 10,378.56 and 4,377.82 is: 6,042.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,519.78 : 10,378.56 = 4,377.82 : x
  2. Step 2: Convert to fraction form
    7,519.78/10,378.56 = 4,377.82/x
  3. Step 3: Cross multiply
    7,519.78x = 10,378.56 × 4,377.82
  4. Step 4: Simplify right side
    7,519.78x = 45,435,467.54
  5. Step 5: Solve for x
    x = 45,435,467.54/7,519.78
  6. Step 6: Final answer
    x = 6,042.13

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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.