Home / 12,721,655.88-17,511,563.94-11,087,253.38

Finding the Fourth Proportional to 12,721,655.88, 17,511,563.94 and 11,087,253.38

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Solution

The fourth proportional to 12,721,655.88, 17,511,563.94 and 11,087,253.38 is: 15,261,782.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721,655.88 : 17,511,563.94 = 11,087,253.38 : x
  2. Step 2: Convert to fraction form
    12,721,655.88/17,511,563.94 = 11,087,253.38/x
  3. Step 3: Cross multiply
    12,721,655.88x = 17,511,563.94 × 11,087,253.38
  4. Step 4: Simplify right side
    12,721,655.88x = 194,155,146,395,293.31
  5. Step 5: Solve for x
    x = 194,155,146,395,293.31/12,721,655.88
  6. Step 6: Final answer
    x = 15,261,782.60

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1.5x scale

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.