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Finding the Fourth Proportional to 17,284.80, 25,927.20 and 11,755.20

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Solution

The fourth proportional to 17,284.80, 25,927.20 and 11,755.20 is: 17,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,284.80 : 25,927.20 = 11,755.20 : x
  2. Step 2: Convert to fraction form
    17,284.80/25,927.20 = 11,755.20/x
  3. Step 3: Cross multiply
    17,284.80x = 25,927.20 × 11,755.20
  4. Step 4: Simplify right side
    17,284.80x = 304,779,421.44
  5. Step 5: Solve for x
    x = 304,779,421.44/17,284.80
  6. Step 6: Final answer
    x = 17,632.80

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Similar ratio
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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.