Home / 11,538.21-17,307.69-3,640.80

Finding the Fourth Proportional to 11,538.21, 17,307.69 and 3,640.80

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Solution

The fourth proportional to 11,538.21, 17,307.69 and 3,640.80 is: 5,461.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,538.21 : 17,307.69 = 3,640.80 : x
  2. Step 2: Convert to fraction form
    11,538.21/17,307.69 = 3,640.80/x
  3. Step 3: Cross multiply
    11,538.21x = 17,307.69 × 3,640.80
  4. Step 4: Simplify right side
    11,538.21x = 63,013,889.00
  5. Step 5: Solve for x
    x = 63,013,889.00/11,538.21
  6. Step 6: Final answer
    x = 5,461.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.