Home / 7,143.53-9,859.26-4,161.14

Finding the Fourth Proportional to 7,143.53, 9,859.26 and 4,161.14

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Solution

The fourth proportional to 7,143.53, 9,859.26 and 4,161.14 is: 5,743.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.53 : 9,859.26 = 4,161.14 : x
  2. Step 2: Convert to fraction form
    7,143.53/9,859.26 = 4,161.14/x
  3. Step 3: Cross multiply
    7,143.53x = 9,859.26 × 4,161.14
  4. Step 4: Simplify right side
    7,143.53x = 41,025,711.86
  5. Step 5: Solve for x
    x = 41,025,711.86/7,143.53
  6. Step 6: Final answer
    x = 5,743.06

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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.