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Finding the Fourth Proportional to 17,990.82, 26,986.50 and 6,304.50

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Solution

The fourth proportional to 17,990.82, 26,986.50 and 6,304.50 is: 9,456.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,990.82 : 26,986.50 = 6,304.50 : x
  2. Step 2: Convert to fraction form
    17,990.82/26,986.50 = 6,304.50/x
  3. Step 3: Cross multiply
    17,990.82x = 26,986.50 × 6,304.50
  4. Step 4: Simplify right side
    17,990.82x = 170,136,389.25
  5. Step 5: Solve for x
    x = 170,136,389.25/17,990.82
  6. Step 6: Final answer
    x = 9,456.84

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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.