Home / 8,845.20-13,300.20-7,419.60

Finding the Fourth Proportional to 8,845.20, 13,300.20 and 7,419.60

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Solution

The fourth proportional to 8,845.20, 13,300.20 and 7,419.60 is: 11,156.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,845.20 : 13,300.20 = 7,419.60 : x
  2. Step 2: Convert to fraction form
    8,845.20/13,300.20 = 7,419.60/x
  3. Step 3: Cross multiply
    8,845.20x = 13,300.20 × 7,419.60
  4. Step 4: Simplify right side
    8,845.20x = 98,682,163.92
  5. Step 5: Solve for x
    x = 98,682,163.92/8,845.20
  6. Step 6: Final answer
    x = 11,156.58

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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.