Home / 12,178.29-18,265.73-4,787.94

Finding the Fourth Proportional to 12,178.29, 18,265.73 and 4,787.94

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Solution

The fourth proportional to 12,178.29, 18,265.73 and 4,787.94 is: 7,181.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.29 : 18,265.73 = 4,787.94 : x
  2. Step 2: Convert to fraction form
    12,178.29/18,265.73 = 4,787.94/x
  3. Step 3: Cross multiply
    12,178.29x = 18,265.73 × 4,787.94
  4. Step 4: Simplify right side
    12,178.29x = 87,455,195.36
  5. Step 5: Solve for x
    x = 87,455,195.36/12,178.29
  6. Step 6: Final answer
    x = 7,181.24

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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.