Home / 13,646.21-20,469.32-4,880.60

Finding the Fourth Proportional to 13,646.21, 20,469.32 and 4,880.60

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Solution

The fourth proportional to 13,646.21, 20,469.32 and 4,880.60 is: 7,320.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.21 : 20,469.32 = 4,880.60 : x
  2. Step 2: Convert to fraction form
    13,646.21/20,469.32 = 4,880.60/x
  3. Step 3: Cross multiply
    13,646.21x = 20,469.32 × 4,880.60
  4. Step 4: Simplify right side
    13,646.21x = 99,902,563.19
  5. Step 5: Solve for x
    x = 99,902,563.19/13,646.21
  6. Step 6: Final answer
    x = 7,320.90

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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.