Home / 12,232.09-16,880.20-6,643.09

Finding the Fourth Proportional to 12,232.09, 16,880.20 and 6,643.09

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Solution

The fourth proportional to 12,232.09, 16,880.20 and 6,643.09 is: 9,167.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,232.09 : 16,880.20 = 6,643.09 : x
  2. Step 2: Convert to fraction form
    12,232.09/16,880.20 = 6,643.09/x
  3. Step 3: Cross multiply
    12,232.09x = 16,880.20 × 6,643.09
  4. Step 4: Simplify right side
    12,232.09x = 112,136,687.82
  5. Step 5: Solve for x
    x = 112,136,687.82/12,232.09
  6. Step 6: Final answer
    x = 9,167.42

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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.