Home / 12,936.42-19,368.06-8,244.78

Finding the Fourth Proportional to 12,936.42, 19,368.06 and 8,244.78

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Solution

The fourth proportional to 12,936.42, 19,368.06 and 8,244.78 is: 12,343.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936.42 : 19,368.06 = 8,244.78 : x
  2. Step 2: Convert to fraction form
    12,936.42/19,368.06 = 8,244.78/x
  3. Step 3: Cross multiply
    12,936.42x = 19,368.06 × 8,244.78
  4. Step 4: Simplify right side
    12,936.42x = 159,685,393.73
  5. Step 5: Solve for x
    x = 159,685,393.73/12,936.42
  6. Step 6: Final answer
    x = 12,343.86

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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.