Home / 13,768.12-20,650.26-4,531

Finding the Fourth Proportional to 13,768.12, 20,650.26 and 4,531

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Solution

The fourth proportional to 13,768.12, 20,650.26 and 4,531 is: 6,795.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.12 : 20,650.26 = 4,531 : x
  2. Step 2: Convert to fraction form
    13,768.12/20,650.26 = 4,531/x
  3. Step 3: Cross multiply
    13,768.12x = 20,650.26 × 4,531
  4. Step 4: Simplify right side
    13,768.12x = 93,566,328.06
  5. Step 5: Solve for x
    x = 93,566,328.06/13,768.12
  6. Step 6: Final answer
    x = 6,795.87

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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.