Home / 9,134.46-12,604.44-5,155.32

Finding the Fourth Proportional to 9,134.46, 12,604.44 and 5,155.32

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Solution

The fourth proportional to 9,134.46, 12,604.44 and 5,155.32 is: 7,113.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,134.46 : 12,604.44 = 5,155.32 : x
  2. Step 2: Convert to fraction form
    9,134.46/12,604.44 = 5,155.32/x
  3. Step 3: Cross multiply
    9,134.46x = 12,604.44 × 5,155.32
  4. Step 4: Simplify right side
    9,134.46x = 64,979,921.62
  5. Step 5: Solve for x
    x = 64,979,921.62/9,134.46
  6. Step 6: Final answer
    x = 7,113.71

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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.