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Finding the Fourth Proportional to 7,903.65, 11,851.48 and 2,636.83

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Solution

The fourth proportional to 7,903.65, 11,851.48 and 2,636.83 is: 3,953.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.65 : 11,851.48 = 2,636.83 : x
  2. Step 2: Convert to fraction form
    7,903.65/11,851.48 = 2,636.83/x
  3. Step 3: Cross multiply
    7,903.65x = 11,851.48 × 2,636.83
  4. Step 4: Simplify right side
    7,903.65x = 31,250,338.01
  5. Step 5: Solve for x
    x = 31,250,338.01/7,903.65
  6. Step 6: Final answer
    x = 3,953.91

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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.