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Finding the Fourth Proportional to 15,234, 21,025.80 and 8,610

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Solution

The fourth proportional to 15,234, 21,025.80 and 8,610 is: 11,883.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,234 : 21,025.80 = 8,610 : x
  2. Step 2: Convert to fraction form
    15,234/21,025.80 = 8,610/x
  3. Step 3: Cross multiply
    15,234x = 21,025.80 × 8,610
  4. Step 4: Simplify right side
    15,234x = 181,032,138
  5. Step 5: Solve for x
    x = 181,032,138/15,234
  6. Step 6: Final answer
    x = 11,883.43

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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.