Home / 13,222.80-19,834.20-4,455.60

Finding the Fourth Proportional to 13,222.80, 19,834.20 and 4,455.60

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Solution

The fourth proportional to 13,222.80, 19,834.20 and 4,455.60 is: 6,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.80 : 19,834.20 = 4,455.60 : x
  2. Step 2: Convert to fraction form
    13,222.80/19,834.20 = 4,455.60/x
  3. Step 3: Cross multiply
    13,222.80x = 19,834.20 × 4,455.60
  4. Step 4: Simplify right side
    13,222.80x = 88,373,261.52
  5. Step 5: Solve for x
    x = 88,373,261.52/13,222.80
  6. Step 6: Final answer
    x = 6,683.40

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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.