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Finding the Fourth Proportional to 14,037.12, 21,037.02 and 7,449.12

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Solution

The fourth proportional to 14,037.12, 21,037.02 and 7,449.12 is: 11,163.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,037.12 : 21,037.02 = 7,449.12 : x
  2. Step 2: Convert to fraction form
    14,037.12/21,037.02 = 7,449.12/x
  3. Step 3: Cross multiply
    14,037.12x = 21,037.02 × 7,449.12
  4. Step 4: Simplify right side
    14,037.12x = 156,707,286.42
  5. Step 5: Solve for x
    x = 156,707,286.42/14,037.12
  6. Step 6: Final answer
    x = 11,163.78

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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.