Home / 17,388.40-26,106.60-11,186.80

Finding the Fourth Proportional to 17,388.40, 26,106.60 and 11,186.80

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Solution

The fourth proportional to 17,388.40, 26,106.60 and 11,186.80 is: 16,795.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,388.40 : 26,106.60 = 11,186.80 : x
  2. Step 2: Convert to fraction form
    17,388.40/26,106.60 = 11,186.80/x
  3. Step 3: Cross multiply
    17,388.40x = 26,106.60 × 11,186.80
  4. Step 4: Simplify right side
    17,388.40x = 292,049,312.88
  5. Step 5: Solve for x
    x = 292,049,312.88/17,388.40
  6. Step 6: Final answer
    x = 16,795.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.