Home / 12,490.36-17,236.40-6,825.14

Finding the Fourth Proportional to 12,490.36, 17,236.40 and 6,825.14

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Solution

The fourth proportional to 12,490.36, 17,236.40 and 6,825.14 is: 9,418.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490.36 : 17,236.40 = 6,825.14 : x
  2. Step 2: Convert to fraction form
    12,490.36/17,236.40 = 6,825.14/x
  3. Step 3: Cross multiply
    12,490.36x = 17,236.40 × 6,825.14
  4. Step 4: Simplify right side
    12,490.36x = 117,640,843.10
  5. Step 5: Solve for x
    x = 117,640,843.10/12,490.36
  6. Step 6: Final answer
    x = 9,418.53

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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.