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Finding the Fourth Proportional to 18,051.66, 27,054.95 and 8,689.94

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Solution

The fourth proportional to 18,051.66, 27,054.95 and 8,689.94 is: 13,024.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,051.66 : 27,054.95 = 8,689.94 : x
  2. Step 2: Convert to fraction form
    18,051.66/27,054.95 = 8,689.94/x
  3. Step 3: Cross multiply
    18,051.66x = 27,054.95 × 8,689.94
  4. Step 4: Simplify right side
    18,051.66x = 235,105,916.39
  5. Step 5: Solve for x
    x = 235,105,916.39/18,051.66
  6. Step 6: Final answer
    x = 13,024.06

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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.