Home / 12,671,789.70-18,976,683.12-11,443,570.94

Finding the Fourth Proportional to 12,671,789.70, 18,976,683.12 and 11,443,570.94

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Solution

The fourth proportional to 12,671,789.70, 18,976,683.12 and 11,443,570.94 is: 17,137,359.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671,789.70 : 18,976,683.12 = 11,443,570.94 : x
  2. Step 2: Convert to fraction form
    12,671,789.70/18,976,683.12 = 11,443,570.94/x
  3. Step 3: Cross multiply
    12,671,789.70x = 18,976,683.12 × 11,443,570.94
  4. Step 4: Simplify right side
    12,671,789.70x = 217,161,019,489,620.53
  5. Step 5: Solve for x
    x = 217,161,019,489,620.53/12,671,789.70
  6. Step 6: Final answer
    x = 17,137,359.81

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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.