Home / 7,865.28-11,806.13-3,485.82

Finding the Fourth Proportional to 7,865.28, 11,806.13 and 3,485.82

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Solution

The fourth proportional to 7,865.28, 11,806.13 and 3,485.82 is: 5,232.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.28 : 11,806.13 = 3,485.82 : x
  2. Step 2: Convert to fraction form
    7,865.28/11,806.13 = 3,485.82/x
  3. Step 3: Cross multiply
    7,865.28x = 11,806.13 × 3,485.82
  4. Step 4: Simplify right side
    7,865.28x = 41,154,026.65
  5. Step 5: Solve for x
    x = 41,154,026.65/7,865.28
  6. Step 6: Final answer
    x = 5,232.37

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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.