Home / 19,761.76-29,623.02-8,083.36

Finding the Fourth Proportional to 19,761.76, 29,623.02 and 8,083.36

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Solution

The fourth proportional to 19,761.76, 29,623.02 and 8,083.36 is: 12,117.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.76 : 29,623.02 = 8,083.36 : x
  2. Step 2: Convert to fraction form
    19,761.76/29,623.02 = 8,083.36/x
  3. Step 3: Cross multiply
    19,761.76x = 29,623.02 × 8,083.36
  4. Step 4: Simplify right side
    19,761.76x = 239,453,534.95
  5. Step 5: Solve for x
    x = 239,453,534.95/19,761.76
  6. Step 6: Final answer
    x = 12,117.01

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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.