Home / 9,145.12-13,718.24-2,571.87

Finding the Fourth Proportional to 9,145.12, 13,718.24 and 2,571.87

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Solution

The fourth proportional to 9,145.12, 13,718.24 and 2,571.87 is: 3,857.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.12 : 13,718.24 = 2,571.87 : x
  2. Step 2: Convert to fraction form
    9,145.12/13,718.24 = 2,571.87/x
  3. Step 3: Cross multiply
    9,145.12x = 13,718.24 × 2,571.87
  4. Step 4: Simplify right side
    9,145.12x = 35,281,529.91
  5. Step 5: Solve for x
    x = 35,281,529.91/9,145.12
  6. Step 6: Final answer
    x = 3,857.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.