Home / 13,560.44-20,284.50-12,731

Finding the Fourth Proportional to 13,560.44, 20,284.50 and 12,731

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Solution

The fourth proportional to 13,560.44, 20,284.50 and 12,731 is: 19,043.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560.44 : 20,284.50 = 12,731 : x
  2. Step 2: Convert to fraction form
    13,560.44/20,284.50 = 12,731/x
  3. Step 3: Cross multiply
    13,560.44x = 20,284.50 × 12,731
  4. Step 4: Simplify right side
    13,560.44x = 258,241,969.50
  5. Step 5: Solve for x
    x = 258,241,969.50/13,560.44
  6. Step 6: Final answer
    x = 19,043.78

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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.