Home / 19,672.04-27,146.40-11,288

Finding the Fourth Proportional to 19,672.04, 27,146.40 and 11,288

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Solution

The fourth proportional to 19,672.04, 27,146.40 and 11,288 is: 15,576.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.04 : 27,146.40 = 11,288 : x
  2. Step 2: Convert to fraction form
    19,672.04/27,146.40 = 11,288/x
  3. Step 3: Cross multiply
    19,672.04x = 27,146.40 × 11,288
  4. Step 4: Simplify right side
    19,672.04x = 306,428,563.20
  5. Step 5: Solve for x
    x = 306,428,563.20/19,672.04
  6. Step 6: Final answer
    x = 15,576.86

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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.