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Finding the Fourth Proportional to 16,689.66, 25,008.09 and 8,896.38

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Solution

The fourth proportional to 16,689.66, 25,008.09 and 8,896.38 is: 13,330.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,689.66 : 25,008.09 = 8,896.38 : x
  2. Step 2: Convert to fraction form
    16,689.66/25,008.09 = 8,896.38/x
  3. Step 3: Cross multiply
    16,689.66x = 25,008.09 × 8,896.38
  4. Step 4: Simplify right side
    16,689.66x = 222,481,471.71
  5. Step 5: Solve for x
    x = 222,481,471.71/16,689.66
  6. Step 6: Final answer
    x = 13,330.50

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1.5x scale

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.