Home / 19,804.57-29,707.76-8,116.88

Finding the Fourth Proportional to 19,804.57, 29,707.76 and 8,116.88

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Solution

The fourth proportional to 19,804.57, 29,707.76 and 8,116.88 is: 12,175.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,804.57 : 29,707.76 = 8,116.88 : x
  2. Step 2: Convert to fraction form
    19,804.57/29,707.76 = 8,116.88/x
  3. Step 3: Cross multiply
    19,804.57x = 29,707.76 × 8,116.88
  4. Step 4: Simplify right side
    19,804.57x = 241,134,194.74
  5. Step 5: Solve for x
    x = 241,134,194.74/19,804.57
  6. Step 6: Final answer
    x = 12,175.69

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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.