Home / 12,249.36-16,875-11,656.44

Finding the Fourth Proportional to 12,249.36, 16,875 and 11,656.44

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Solution

The fourth proportional to 12,249.36, 16,875 and 11,656.44 is: 16,058.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.36 : 16,875 = 11,656.44 : x
  2. Step 2: Convert to fraction form
    12,249.36/16,875 = 11,656.44/x
  3. Step 3: Cross multiply
    12,249.36x = 16,875 × 11,656.44
  4. Step 4: Simplify right side
    12,249.36x = 196,702,425
  5. Step 5: Solve for x
    x = 196,702,425/12,249.36
  6. Step 6: Final answer
    x = 16,058.18

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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.