Home / 12,490.29-17,236.31-6,825.05

Finding the Fourth Proportional to 12,490.29, 17,236.31 and 6,825.05

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Solution

The fourth proportional to 12,490.29, 17,236.31 and 6,825.05 is: 9,418.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490.29 : 17,236.31 = 6,825.05 : x
  2. Step 2: Convert to fraction form
    12,490.29/17,236.31 = 6,825.05/x
  3. Step 3: Cross multiply
    12,490.29x = 17,236.31 × 6,825.05
  4. Step 4: Simplify right side
    12,490.29x = 117,638,677.57
  5. Step 5: Solve for x
    x = 117,638,677.57/12,490.29
  6. Step 6: Final answer
    x = 9,418.41

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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.