Home / 13,780.19-18,993.54-10,548.90

Finding the Fourth Proportional to 13,780.19, 18,993.54 and 10,548.90

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Solution

The fourth proportional to 13,780.19, 18,993.54 and 10,548.90 is: 14,539.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780.19 : 18,993.54 = 10,548.90 : x
  2. Step 2: Convert to fraction form
    13,780.19/18,993.54 = 10,548.90/x
  3. Step 3: Cross multiply
    13,780.19x = 18,993.54 × 10,548.90
  4. Step 4: Simplify right side
    13,780.19x = 200,360,934.33
  5. Step 5: Solve for x
    x = 200,360,934.33/13,780.19
  6. Step 6: Final answer
    x = 14,539.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.