Home / 13,790.54-20,687.03-4,427.15

Finding the Fourth Proportional to 13,790.54, 20,687.03 and 4,427.15

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Solution

The fourth proportional to 13,790.54, 20,687.03 and 4,427.15 is: 6,641.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790.54 : 20,687.03 = 4,427.15 : x
  2. Step 2: Convert to fraction form
    13,790.54/20,687.03 = 4,427.15/x
  3. Step 3: Cross multiply
    13,790.54x = 20,687.03 × 4,427.15
  4. Step 4: Simplify right side
    13,790.54x = 91,584,459.29
  5. Step 5: Solve for x
    x = 91,584,459.29/13,790.54
  6. Step 6: Final answer
    x = 6,641.11

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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.