Home / 9,321.21-13,987.22-3,477.60

Finding the Fourth Proportional to 9,321.21, 13,987.22 and 3,477.60

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Solution

The fourth proportional to 9,321.21, 13,987.22 and 3,477.60 is: 5,218.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321.21 : 13,987.22 = 3,477.60 : x
  2. Step 2: Convert to fraction form
    9,321.21/13,987.22 = 3,477.60/x
  3. Step 3: Cross multiply
    9,321.21x = 13,987.22 × 3,477.60
  4. Step 4: Simplify right side
    9,321.21x = 48,641,938.88
  5. Step 5: Solve for x
    x = 48,641,938.88/9,321.21
  6. Step 6: Final answer
    x = 5,218.41

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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.