Home / 12,534.25-18,798.30-5,516.03

Finding the Fourth Proportional to 12,534.25, 18,798.30 and 5,516.03

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Solution

The fourth proportional to 12,534.25, 18,798.30 and 5,516.03 is: 8,272.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,534.25 : 18,798.30 = 5,516.03 : x
  2. Step 2: Convert to fraction form
    12,534.25/18,798.30 = 5,516.03/x
  3. Step 3: Cross multiply
    12,534.25x = 18,798.30 × 5,516.03
  4. Step 4: Simplify right side
    12,534.25x = 103,691,986.75
  5. Step 5: Solve for x
    x = 103,691,986.75/12,534.25
  6. Step 6: Final answer
    x = 8,272.70

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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.