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Finding the Fourth Proportional to 8,903.19, 13,361.31 and 3,976.05

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Solution

The fourth proportional to 8,903.19, 13,361.31 and 3,976.05 is: 5,966.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,903.19 : 13,361.31 = 3,976.05 : x
  2. Step 2: Convert to fraction form
    8,903.19/13,361.31 = 3,976.05/x
  3. Step 3: Cross multiply
    8,903.19x = 13,361.31 × 3,976.05
  4. Step 4: Simplify right side
    8,903.19x = 53,125,236.63
  5. Step 5: Solve for x
    x = 53,125,236.63/8,903.19
  6. Step 6: Final answer
    x = 5,966.99

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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.