Home / 14,131.22-19,495.51-8,161.72

Finding the Fourth Proportional to 14,131.22, 19,495.51 and 8,161.72

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Solution

The fourth proportional to 14,131.22, 19,495.51 and 8,161.72 is: 11,259.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,131.22 : 19,495.51 = 8,161.72 : x
  2. Step 2: Convert to fraction form
    14,131.22/19,495.51 = 8,161.72/x
  3. Step 3: Cross multiply
    14,131.22x = 19,495.51 × 8,161.72
  4. Step 4: Simplify right side
    14,131.22x = 159,116,824.73
  5. Step 5: Solve for x
    x = 159,116,824.73/14,131.22
  6. Step 6: Final answer
    x = 11,259.95

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1.5x scale

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.