Home / 10,640.25-15,959.77-4,715.43

Finding the Fourth Proportional to 10,640.25, 15,959.77 and 4,715.43

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Solution

The fourth proportional to 10,640.25, 15,959.77 and 4,715.43 is: 7,072.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.25 : 15,959.77 = 4,715.43 : x
  2. Step 2: Convert to fraction form
    10,640.25/15,959.77 = 4,715.43/x
  3. Step 3: Cross multiply
    10,640.25x = 15,959.77 × 4,715.43
  4. Step 4: Simplify right side
    10,640.25x = 75,257,178.25
  5. Step 5: Solve for x
    x = 75,257,178.25/10,640.25
  6. Step 6: Final answer
    x = 7,072.88

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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.