Home / 14,272.22-19,695.35-7,811.82

Finding the Fourth Proportional to 14,272.22, 19,695.35 and 7,811.82

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Solution

The fourth proportional to 14,272.22, 19,695.35 and 7,811.82 is: 10,780.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,272.22 : 19,695.35 = 7,811.82 : x
  2. Step 2: Convert to fraction form
    14,272.22/19,695.35 = 7,811.82/x
  3. Step 3: Cross multiply
    14,272.22x = 19,695.35 × 7,811.82
  4. Step 4: Simplify right side
    14,272.22x = 153,856,489.98
  5. Step 5: Solve for x
    x = 153,856,489.98/14,272.22
  6. Step 6: Final answer
    x = 10,780.14

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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.