Home / 13,583.38-18,745.96-7,615.44

Finding the Fourth Proportional to 13,583.38, 18,745.96 and 7,615.44

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Solution

The fourth proportional to 13,583.38, 18,745.96 and 7,615.44 is: 10,509.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.38 : 18,745.96 = 7,615.44 : x
  2. Step 2: Convert to fraction form
    13,583.38/18,745.96 = 7,615.44/x
  3. Step 3: Cross multiply
    13,583.38x = 18,745.96 × 7,615.44
  4. Step 4: Simplify right side
    13,583.38x = 142,758,733.62
  5. Step 5: Solve for x
    x = 142,758,733.62/13,583.38
  6. Step 6: Final answer
    x = 10,509.81

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1.5x scale

Why These Related Problems?

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