Home / 12,490.37-17,236.89-6,825.23

Finding the Fourth Proportional to 12,490.37, 17,236.89 and 6,825.23

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Solution

The fourth proportional to 12,490.37, 17,236.89 and 6,825.23 is: 9,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490.37 : 17,236.89 = 6,825.23 : x
  2. Step 2: Convert to fraction form
    12,490.37/17,236.89 = 6,825.23/x
  3. Step 3: Cross multiply
    12,490.37x = 17,236.89 × 6,825.23
  4. Step 4: Simplify right side
    12,490.37x = 117,645,652.55
  5. Step 5: Solve for x
    x = 117,645,652.55/12,490.37
  6. Step 6: Final answer
    x = 9,418.91

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Half scale
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Double scale
Find fourth proportional to 12,491.37, 17,238.27 and 6,826.23
Similar ratio
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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.