Home / 6,916.58-9,544.78-3,891.47

Finding the Fourth Proportional to 6,916.58, 9,544.78 and 3,891.47

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Solution

The fourth proportional to 6,916.58, 9,544.78 and 3,891.47 is: 5,370.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916.58 : 9,544.78 = 3,891.47 : x
  2. Step 2: Convert to fraction form
    6,916.58/9,544.78 = 3,891.47/x
  3. Step 3: Cross multiply
    6,916.58x = 9,544.78 × 3,891.47
  4. Step 4: Simplify right side
    6,916.58x = 37,143,253.75
  5. Step 5: Solve for x
    x = 37,143,253.75/6,916.58
  6. Step 6: Final answer
    x = 5,370.17

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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.