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Finding the Fourth Proportional to 11,803.78, 17,701.19 and 3,903.93

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Solution

The fourth proportional to 11,803.78, 17,701.19 and 3,903.93 is: 5,854.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,803.78 : 17,701.19 = 3,903.93 : x
  2. Step 2: Convert to fraction form
    11,803.78/17,701.19 = 3,903.93/x
  3. Step 3: Cross multiply
    11,803.78x = 17,701.19 × 3,903.93
  4. Step 4: Simplify right side
    11,803.78x = 69,104,187.16
  5. Step 5: Solve for x
    x = 69,104,187.16/11,803.78
  6. Step 6: Final answer
    x = 5,854.41

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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.