Home / 12,586.64-17,450.30-11,886.80

Finding the Fourth Proportional to 12,586.64, 17,450.30 and 11,886.80

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Solution

The fourth proportional to 12,586.64, 17,450.30 and 11,886.80 is: 16,480.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586.64 : 17,450.30 = 11,886.80 : x
  2. Step 2: Convert to fraction form
    12,586.64/17,450.30 = 11,886.80/x
  3. Step 3: Cross multiply
    12,586.64x = 17,450.30 × 11,886.80
  4. Step 4: Simplify right side
    12,586.64x = 207,428,226.04
  5. Step 5: Solve for x
    x = 207,428,226.04/12,586.64
  6. Step 6: Final answer
    x = 16,480.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.