Home / 9,356.24-12,912.20-5,164.88

Finding the Fourth Proportional to 9,356.24, 12,912.20 and 5,164.88

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Solution

The fourth proportional to 9,356.24, 12,912.20 and 5,164.88 is: 7,127.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,356.24 : 12,912.20 = 5,164.88 : x
  2. Step 2: Convert to fraction form
    9,356.24/12,912.20 = 5,164.88/x
  3. Step 3: Cross multiply
    9,356.24x = 12,912.20 × 5,164.88
  4. Step 4: Simplify right side
    9,356.24x = 66,689,963.54
  5. Step 5: Solve for x
    x = 66,689,963.54/9,356.24
  6. Step 6: Final answer
    x = 7,127.86

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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.