Home / 9,145.57-13,719.17-2,571.81

Finding the Fourth Proportional to 9,145.57, 13,719.17 and 2,571.81

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Solution

The fourth proportional to 9,145.57, 13,719.17 and 2,571.81 is: 3,857.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.57 : 13,719.17 = 2,571.81 : x
  2. Step 2: Convert to fraction form
    9,145.57/13,719.17 = 2,571.81/x
  3. Step 3: Cross multiply
    9,145.57x = 13,719.17 × 2,571.81
  4. Step 4: Simplify right side
    9,145.57x = 35,283,085.74
  5. Step 5: Solve for x
    x = 35,283,085.74/9,145.57
  6. Step 6: Final answer
    x = 3,857.94

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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.