Home / 12,672.39-18,996.75-5,272.14

Finding the Fourth Proportional to 12,672.39, 18,996.75 and 5,272.14

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Solution

The fourth proportional to 12,672.39, 18,996.75 and 5,272.14 is: 7,903.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.39 : 18,996.75 = 5,272.14 : x
  2. Step 2: Convert to fraction form
    12,672.39/18,996.75 = 5,272.14/x
  3. Step 3: Cross multiply
    12,672.39x = 18,996.75 × 5,272.14
  4. Step 4: Simplify right side
    12,672.39x = 100,153,525.55
  5. Step 5: Solve for x
    x = 100,153,525.55/12,672.39
  6. Step 6: Final answer
    x = 7,903.29

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1.5x scale

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.