Home / 9,145.32-13,718.79-2,571.56

Finding the Fourth Proportional to 9,145.32, 13,718.79 and 2,571.56

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Solution

The fourth proportional to 9,145.32, 13,718.79 and 2,571.56 is: 3,857.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.32 : 13,718.79 = 2,571.56 : x
  2. Step 2: Convert to fraction form
    9,145.32/13,718.79 = 2,571.56/x
  3. Step 3: Cross multiply
    9,145.32x = 13,718.79 × 2,571.56
  4. Step 4: Simplify right side
    9,145.32x = 35,278,678.75
  5. Step 5: Solve for x
    x = 35,278,678.75/9,145.32
  6. Step 6: Final answer
    x = 3,857.57

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1.5x scale

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.