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Finding the Fourth Proportional to 17,768.40, 26,623.80 and 11,182.80

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Solution

The fourth proportional to 17,768.40, 26,623.80 and 11,182.80 is: 16,756.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,768.40 : 26,623.80 = 11,182.80 : x
  2. Step 2: Convert to fraction form
    17,768.40/26,623.80 = 11,182.80/x
  3. Step 3: Cross multiply
    17,768.40x = 26,623.80 × 11,182.80
  4. Step 4: Simplify right side
    17,768.40x = 297,728,630.64
  5. Step 5: Solve for x
    x = 297,728,630.64/17,768.40
  6. Step 6: Final answer
    x = 16,756.07

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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.