Home / 14,963.22-20,650.26-9,918.72

Finding the Fourth Proportional to 14,963.22, 20,650.26 and 9,918.72

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Solution

The fourth proportional to 14,963.22, 20,650.26 and 9,918.72 is: 13,688.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,963.22 : 20,650.26 = 9,918.72 : x
  2. Step 2: Convert to fraction form
    14,963.22/20,650.26 = 9,918.72/x
  3. Step 3: Cross multiply
    14,963.22x = 20,650.26 × 9,918.72
  4. Step 4: Simplify right side
    14,963.22x = 204,824,146.87
  5. Step 5: Solve for x
    x = 204,824,146.87/14,963.22
  6. Step 6: Final answer
    x = 13,688.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.