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Finding the Fourth Proportional to 12,894.49, 19,343.08 and 5,499.73

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Solution

The fourth proportional to 12,894.49, 19,343.08 and 5,499.73 is: 8,250.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894.49 : 19,343.08 = 5,499.73 : x
  2. Step 2: Convert to fraction form
    12,894.49/19,343.08 = 5,499.73/x
  3. Step 3: Cross multiply
    12,894.49x = 19,343.08 × 5,499.73
  4. Step 4: Simplify right side
    12,894.49x = 106,381,717.37
  5. Step 5: Solve for x
    x = 106,381,717.37/12,894.49
  6. Step 6: Final answer
    x = 8,250.17

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Double scale
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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.