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Finding the Fourth Proportional to 14,556.48, 21,857.04 and 8,738.88

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Solution

The fourth proportional to 14,556.48, 21,857.04 and 8,738.88 is: 13,121.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,556.48 : 21,857.04 = 8,738.88 : x
  2. Step 2: Convert to fraction form
    14,556.48/21,857.04 = 8,738.88/x
  3. Step 3: Cross multiply
    14,556.48x = 21,857.04 × 8,738.88
  4. Step 4: Simplify right side
    14,556.48x = 191,006,049.72
  5. Step 5: Solve for x
    x = 191,006,049.72/14,556.48
  6. Step 6: Final answer
    x = 13,121.72

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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.