Home / 9,356.73-12,912.19-5,107.76

Finding the Fourth Proportional to 9,356.73, 12,912.19 and 5,107.76

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Solution

The fourth proportional to 9,356.73, 12,912.19 and 5,107.76 is: 7,048.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,356.73 : 12,912.19 = 5,107.76 : x
  2. Step 2: Convert to fraction form
    9,356.73/12,912.19 = 5,107.76/x
  3. Step 3: Cross multiply
    9,356.73x = 12,912.19 × 5,107.76
  4. Step 4: Simplify right side
    9,356.73x = 65,952,338.68
  5. Step 5: Solve for x
    x = 65,952,338.68/9,356.73
  6. Step 6: Final answer
    x = 7,048.66

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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.