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Finding the Fourth Proportional to 16,389.36, 22,616.64 and 8,937.36

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Solution

The fourth proportional to 16,389.36, 22,616.64 and 8,937.36 is: 12,333.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,389.36 : 22,616.64 = 8,937.36 : x
  2. Step 2: Convert to fraction form
    16,389.36/22,616.64 = 8,937.36/x
  3. Step 3: Cross multiply
    16,389.36x = 22,616.64 × 8,937.36
  4. Step 4: Simplify right side
    16,389.36x = 202,133,053.67
  5. Step 5: Solve for x
    x = 202,133,053.67/16,389.36
  6. Step 6: Final answer
    x = 12,333.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.