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Finding the Fourth Proportional to 15,895.54, 21,935.70 and 8,822.02

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Solution

The fourth proportional to 15,895.54, 21,935.70 and 8,822.02 is: 12,174.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,895.54 : 21,935.70 = 8,822.02 : x
  2. Step 2: Convert to fraction form
    15,895.54/21,935.70 = 8,822.02/x
  3. Step 3: Cross multiply
    15,895.54x = 21,935.70 × 8,822.02
  4. Step 4: Simplify right side
    15,895.54x = 193,517,184.11
  5. Step 5: Solve for x
    x = 193,517,184.11/15,895.54
  6. Step 6: Final answer
    x = 12,174.31

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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.