Home / 6,911.84-10,367.70-4,139.28

Finding the Fourth Proportional to 6,911.84, 10,367.70 and 4,139.28

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Solution

The fourth proportional to 6,911.84, 10,367.70 and 4,139.28 is: 6,208.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911.84 : 10,367.70 = 4,139.28 : x
  2. Step 2: Convert to fraction form
    6,911.84/10,367.70 = 4,139.28/x
  3. Step 3: Cross multiply
    6,911.84x = 10,367.70 × 4,139.28
  4. Step 4: Simplify right side
    6,911.84x = 42,914,813.26
  5. Step 5: Solve for x
    x = 42,914,813.26/6,911.84
  6. Step 6: Final answer
    x = 6,208.88

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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.