Home / 11,690.21-17,544.58-5,121.01

Finding the Fourth Proportional to 11,690.21, 17,544.58 and 5,121.01

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Solution

The fourth proportional to 11,690.21, 17,544.58 and 5,121.01 is: 7,685.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.21 : 17,544.58 = 5,121.01 : x
  2. Step 2: Convert to fraction form
    11,690.21/17,544.58 = 5,121.01/x
  3. Step 3: Cross multiply
    11,690.21x = 17,544.58 × 5,121.01
  4. Step 4: Simplify right side
    11,690.21x = 89,845,969.63
  5. Step 5: Solve for x
    x = 89,845,969.63/11,690.21
  6. Step 6: Final answer
    x = 7,685.57

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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.