Home / 12,721,783.20-17,511,739.20-11,087,381.04

Finding the Fourth Proportional to 12,721,783.20, 17,511,739.20 and 11,087,381.04

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Solution

The fourth proportional to 12,721,783.20, 17,511,739.20 and 11,087,381.04 is: 15,261,958.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721,783.20 : 17,511,739.20 = 11,087,381.04 : x
  2. Step 2: Convert to fraction form
    12,721,783.20/17,511,739.20 = 11,087,381.04/x
  3. Step 3: Cross multiply
    12,721,783.20x = 17,511,739.20 × 11,087,381.04
  4. Step 4: Simplify right side
    12,721,783.20x = 194,159,325,183,504.75
  5. Step 5: Solve for x
    x = 194,159,325,183,504.75/12,721,783.20
  6. Step 6: Final answer
    x = 15,261,958.34

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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.