Home / 12,846,857-17,728,662.66-7,123,721

Finding the Fourth Proportional to 12,846,857, 17,728,662.66 and 7,123,721

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Solution

The fourth proportional to 12,846,857, 17,728,662.66 and 7,123,721 is: 9,830,734.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,846,857 : 17,728,662.66 = 7,123,721 : x
  2. Step 2: Convert to fraction form
    12,846,857/17,728,662.66 = 7,123,721/x
  3. Step 3: Cross multiply
    12,846,857x = 17,728,662.66 × 7,123,721
  4. Step 4: Simplify right side
    12,846,857x = 126,294,046,492,957.86
  5. Step 5: Solve for x
    x = 126,294,046,492,957.86/12,846,857
  6. Step 6: Final answer
    x = 9,830,734.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.