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Finding the Fourth Proportional to 17,816.40, 26,695.80 and 11,230.80

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Solution

The fourth proportional to 17,816.40, 26,695.80 and 11,230.80 is: 16,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,816.40 : 26,695.80 = 11,230.80 : x
  2. Step 2: Convert to fraction form
    17,816.40/26,695.80 = 11,230.80/x
  3. Step 3: Cross multiply
    17,816.40x = 26,695.80 × 11,230.80
  4. Step 4: Simplify right side
    17,816.40x = 299,815,190.64
  5. Step 5: Solve for x
    x = 299,815,190.64/17,816.40
  6. Step 6: Final answer
    x = 16,828.05

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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.