Home / 12,058.21-16,639.94-6,680.43

Finding the Fourth Proportional to 12,058.21, 16,639.94 and 6,680.43

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Solution

The fourth proportional to 12,058.21, 16,639.94 and 6,680.43 is: 9,218.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,058.21 : 16,639.94 = 6,680.43 : x
  2. Step 2: Convert to fraction form
    12,058.21/16,639.94 = 6,680.43/x
  3. Step 3: Cross multiply
    12,058.21x = 16,639.94 × 6,680.43
  4. Step 4: Simplify right side
    12,058.21x = 111,161,908.68
  5. Step 5: Solve for x
    x = 111,161,908.68/12,058.21
  6. Step 6: Final answer
    x = 9,218.77

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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.