Home / 8,915.44-12,309.26-5,559.60

Finding the Fourth Proportional to 8,915.44, 12,309.26 and 5,559.60

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Solution

The fourth proportional to 8,915.44, 12,309.26 and 5,559.60 is: 7,675.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.44 : 12,309.26 = 5,559.60 : x
  2. Step 2: Convert to fraction form
    8,915.44/12,309.26 = 5,559.60/x
  3. Step 3: Cross multiply
    8,915.44x = 12,309.26 × 5,559.60
  4. Step 4: Simplify right side
    8,915.44x = 68,434,561.90
  5. Step 5: Solve for x
    x = 68,434,561.90/8,915.44
  6. Step 6: Final answer
    x = 7,675.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.