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Finding the Fourth Proportional to 14,094.78, 21,137.96 and 8,837.78

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Solution

The fourth proportional to 14,094.78, 21,137.96 and 8,837.78 is: 13,254.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,094.78 : 21,137.96 = 8,837.78 : x
  2. Step 2: Convert to fraction form
    14,094.78/21,137.96 = 8,837.78/x
  3. Step 3: Cross multiply
    14,094.78x = 21,137.96 × 8,837.78
  4. Step 4: Simplify right side
    14,094.78x = 186,812,490.25
  5. Step 5: Solve for x
    x = 186,812,490.25/14,094.78
  6. Step 6: Final answer
    x = 13,254.02

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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.