Home / 13,767.78-20,635.86-6,263.28

Finding the Fourth Proportional to 13,767.78, 20,635.86 and 6,263.28

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Solution

The fourth proportional to 13,767.78, 20,635.86 and 6,263.28 is: 9,387.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,767.78 : 20,635.86 = 6,263.28 : x
  2. Step 2: Convert to fraction form
    13,767.78/20,635.86 = 6,263.28/x
  3. Step 3: Cross multiply
    13,767.78x = 20,635.86 × 6,263.28
  4. Step 4: Simplify right side
    13,767.78x = 129,248,169.22
  5. Step 5: Solve for x
    x = 129,248,169.22/13,767.78
  6. Step 6: Final answer
    x = 9,387.73

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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.