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Finding the Fourth Proportional to 15,898.08, 21,941.28 and 8,825.28

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Solution

The fourth proportional to 15,898.08, 21,941.28 and 8,825.28 is: 12,179.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,898.08 : 21,941.28 = 8,825.28 : x
  2. Step 2: Convert to fraction form
    15,898.08/21,941.28 = 8,825.28/x
  3. Step 3: Cross multiply
    15,898.08x = 21,941.28 × 8,825.28
  4. Step 4: Simplify right side
    15,898.08x = 193,637,939.56
  5. Step 5: Solve for x
    x = 193,637,939.56/15,898.08
  6. Step 6: Final answer
    x = 12,179.96

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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.