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Finding the Fourth Proportional to 8,913.31, 13,370.13 and 3,369.26

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Solution

The fourth proportional to 8,913.31, 13,370.13 and 3,369.26 is: 5,053.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.31 : 13,370.13 = 3,369.26 : x
  2. Step 2: Convert to fraction form
    8,913.31/13,370.13 = 3,369.26/x
  3. Step 3: Cross multiply
    8,913.31x = 13,370.13 × 3,369.26
  4. Step 4: Simplify right side
    8,913.31x = 45,047,477.63
  5. Step 5: Solve for x
    x = 45,047,477.63/8,913.31
  6. Step 6: Final answer
    x = 5,053.96

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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.