Home / 7,139.14-10,713.26-3,853.17

Finding the Fourth Proportional to 7,139.14, 10,713.26 and 3,853.17

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Solution

The fourth proportional to 7,139.14, 10,713.26 and 3,853.17 is: 5,782.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.14 : 10,713.26 = 3,853.17 : x
  2. Step 2: Convert to fraction form
    7,139.14/10,713.26 = 3,853.17/x
  3. Step 3: Cross multiply
    7,139.14x = 10,713.26 × 3,853.17
  4. Step 4: Simplify right side
    7,139.14x = 41,280,021.67
  5. Step 5: Solve for x
    x = 41,280,021.67/7,139.14
  6. Step 6: Final answer
    x = 5,782.21

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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.