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Finding the Fourth Proportional to 13,952.64, 20,922.30 and 8,110.92

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Solution

The fourth proportional to 13,952.64, 20,922.30 and 8,110.92 is: 12,162.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.64 : 20,922.30 = 8,110.92 : x
  2. Step 2: Convert to fraction form
    13,952.64/20,922.30 = 8,110.92/x
  3. Step 3: Cross multiply
    13,952.64x = 20,922.30 × 8,110.92
  4. Step 4: Simplify right side
    13,952.64x = 169,699,101.52
  5. Step 5: Solve for x
    x = 169,699,101.52/13,952.64
  6. Step 6: Final answer
    x = 12,162.51

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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.