Home / 13,153.60-19,735.20-6,222.88

Finding the Fourth Proportional to 13,153.60, 19,735.20 and 6,222.88

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Solution

The fourth proportional to 13,153.60, 19,735.20 and 6,222.88 is: 9,336.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.60 : 19,735.20 = 6,222.88 : x
  2. Step 2: Convert to fraction form
    13,153.60/19,735.20 = 6,222.88/x
  3. Step 3: Cross multiply
    13,153.60x = 19,735.20 × 6,222.88
  4. Step 4: Simplify right side
    13,153.60x = 122,809,781.38
  5. Step 5: Solve for x
    x = 122,809,781.38/13,153.60
  6. Step 6: Final answer
    x = 9,336.59

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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.