Home / 10,640.18-15,963.15-3,715.22

Finding the Fourth Proportional to 10,640.18, 15,963.15 and 3,715.22

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Solution

The fourth proportional to 10,640.18, 15,963.15 and 3,715.22 is: 5,573.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.18 : 15,963.15 = 3,715.22 : x
  2. Step 2: Convert to fraction form
    10,640.18/15,963.15 = 3,715.22/x
  3. Step 3: Cross multiply
    10,640.18x = 15,963.15 × 3,715.22
  4. Step 4: Simplify right side
    10,640.18x = 59,306,614.14
  5. Step 5: Solve for x
    x = 59,306,614.14/10,640.18
  6. Step 6: Final answer
    x = 5,573.84

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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.