Home / 11,323.40-16,986.70-3,531.40

Finding the Fourth Proportional to 11,323.40, 16,986.70 and 3,531.40

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Solution

The fourth proportional to 11,323.40, 16,986.70 and 3,531.40 is: 5,297.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,323.40 : 16,986.70 = 3,531.40 : x
  2. Step 2: Convert to fraction form
    11,323.40/16,986.70 = 3,531.40/x
  3. Step 3: Cross multiply
    11,323.40x = 16,986.70 × 3,531.40
  4. Step 4: Simplify right side
    11,323.40x = 59,986,832.38
  5. Step 5: Solve for x
    x = 59,986,832.38/11,323.40
  6. Step 6: Final answer
    x = 5,297.60

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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.