Home / 13,886.91-20,832.53-4,650.75

Finding the Fourth Proportional to 13,886.91, 20,832.53 and 4,650.75

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Solution

The fourth proportional to 13,886.91, 20,832.53 and 4,650.75 is: 6,976.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.91 : 20,832.53 = 4,650.75 : x
  2. Step 2: Convert to fraction form
    13,886.91/20,832.53 = 4,650.75/x
  3. Step 3: Cross multiply
    13,886.91x = 20,832.53 × 4,650.75
  4. Step 4: Simplify right side
    13,886.91x = 96,886,865.64
  5. Step 5: Solve for x
    x = 96,886,865.64/13,886.91
  6. Step 6: Final answer
    x = 6,976.85

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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.