Home / 8,911.22-13,358.02-4,222.99

Finding the Fourth Proportional to 8,911.22, 13,358.02 and 4,222.99

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Solution

The fourth proportional to 8,911.22, 13,358.02 and 4,222.99 is: 6,330.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.22 : 13,358.02 = 4,222.99 : x
  2. Step 2: Convert to fraction form
    8,911.22/13,358.02 = 4,222.99/x
  3. Step 3: Cross multiply
    8,911.22x = 13,358.02 × 4,222.99
  4. Step 4: Simplify right side
    8,911.22x = 56,410,784.88
  5. Step 5: Solve for x
    x = 56,410,784.88/8,911.22
  6. Step 6: Final answer
    x = 6,330.31

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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.