Home / 13,888.91-20,835.53-4,652.75

Finding the Fourth Proportional to 13,888.91, 20,835.53 and 4,652.75

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Solution

The fourth proportional to 13,888.91, 20,835.53 and 4,652.75 is: 6,979.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.91 : 20,835.53 = 4,652.75 : x
  2. Step 2: Convert to fraction form
    13,888.91/20,835.53 = 4,652.75/x
  3. Step 3: Cross multiply
    13,888.91x = 20,835.53 × 4,652.75
  4. Step 4: Simplify right side
    13,888.91x = 96,942,512.21
  5. Step 5: Solve for x
    x = 96,942,512.21/13,888.91
  6. Step 6: Final answer
    x = 6,979.85

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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.