Home / 9,078.98-13,615.84-3,531.09

Finding the Fourth Proportional to 9,078.98, 13,615.84 and 3,531.09

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Solution

The fourth proportional to 9,078.98, 13,615.84 and 3,531.09 is: 5,295.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.98 : 13,615.84 = 3,531.09 : x
  2. Step 2: Convert to fraction form
    9,078.98/13,615.84 = 3,531.09/x
  3. Step 3: Cross multiply
    9,078.98x = 13,615.84 × 3,531.09
  4. Step 4: Simplify right side
    9,078.98x = 48,078,738.81
  5. Step 5: Solve for x
    x = 48,078,738.81/9,078.98
  6. Step 6: Final answer
    x = 5,295.61

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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.