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Finding the Fourth Proportional to 12,529.77, 18,750.78 and 9,234.69

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Solution

The fourth proportional to 12,529.77, 18,750.78 and 9,234.69 is: 13,819.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.77 : 18,750.78 = 9,234.69 : x
  2. Step 2: Convert to fraction form
    12,529.77/18,750.78 = 9,234.69/x
  3. Step 3: Cross multiply
    12,529.77x = 18,750.78 × 9,234.69
  4. Step 4: Simplify right side
    12,529.77x = 173,157,640.56
  5. Step 5: Solve for x
    x = 173,157,640.56/12,529.77
  6. Step 6: Final answer
    x = 13,819.70

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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.