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Finding the Fourth Proportional to 15,364.24, 21,201.84 and 8,650.24

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Solution

The fourth proportional to 15,364.24, 21,201.84 and 8,650.24 is: 11,936.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,364.24 : 21,201.84 = 8,650.24 : x
  2. Step 2: Convert to fraction form
    15,364.24/21,201.84 = 8,650.24/x
  3. Step 3: Cross multiply
    15,364.24x = 21,201.84 × 8,650.24
  4. Step 4: Simplify right side
    15,364.24x = 183,401,004.44
  5. Step 5: Solve for x
    x = 183,401,004.44/15,364.24
  6. Step 6: Final answer
    x = 11,936.87

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1.5x scale

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.