Home / 13,916.50-20,879.87-6,523.36

Finding the Fourth Proportional to 13,916.50, 20,879.87 and 6,523.36

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Solution

The fourth proportional to 13,916.50, 20,879.87 and 6,523.36 is: 9,787.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.50 : 20,879.87 = 6,523.36 : x
  2. Step 2: Convert to fraction form
    13,916.50/20,879.87 = 6,523.36/x
  3. Step 3: Cross multiply
    13,916.50x = 20,879.87 × 6,523.36
  4. Step 4: Simplify right side
    13,916.50x = 136,206,908.76
  5. Step 5: Solve for x
    x = 136,206,908.76/13,916.50
  6. Step 6: Final answer
    x = 9,787.44

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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.