Home / 8,890.22-12,268.36-4,911.50

Finding the Fourth Proportional to 8,890.22, 12,268.36 and 4,911.50

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Solution

The fourth proportional to 8,890.22, 12,268.36 and 4,911.50 is: 6,777.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.22 : 12,268.36 = 4,911.50 : x
  2. Step 2: Convert to fraction form
    8,890.22/12,268.36 = 4,911.50/x
  3. Step 3: Cross multiply
    8,890.22x = 12,268.36 × 4,911.50
  4. Step 4: Simplify right side
    8,890.22x = 60,256,086.95
  5. Step 5: Solve for x
    x = 60,256,086.95/8,890.22
  6. Step 6: Final answer
    x = 6,777.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.