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Finding the Fourth Proportional to 14,900.96, 20,561.04 and 8,612.12

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Solution

The fourth proportional to 14,900.96, 20,561.04 and 8,612.12 is: 11,883.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,900.96 : 20,561.04 = 8,612.12 : x
  2. Step 2: Convert to fraction form
    14,900.96/20,561.04 = 8,612.12/x
  3. Step 3: Cross multiply
    14,900.96x = 20,561.04 × 8,612.12
  4. Step 4: Simplify right side
    14,900.96x = 177,074,143.80
  5. Step 5: Solve for x
    x = 177,074,143.80/14,900.96
  6. Step 6: Final answer
    x = 11,883.41

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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.