Home / 13,787.82-20,676.60-5,465.07

Finding the Fourth Proportional to 13,787.82, 20,676.60 and 5,465.07

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Solution

The fourth proportional to 13,787.82, 20,676.60 and 5,465.07 is: 8,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.82 : 20,676.60 = 5,465.07 : x
  2. Step 2: Convert to fraction form
    13,787.82/20,676.60 = 5,465.07/x
  3. Step 3: Cross multiply
    13,787.82x = 20,676.60 × 5,465.07
  4. Step 4: Simplify right side
    13,787.82x = 112,999,066.36
  5. Step 5: Solve for x
    x = 112,999,066.36/13,787.82
  6. Step 6: Final answer
    x = 8,195.57

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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.