Home / 8,889.96-12,268.40-4,911.33

Finding the Fourth Proportional to 8,889.96, 12,268.40 and 4,911.33

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Solution

The fourth proportional to 8,889.96, 12,268.40 and 4,911.33 is: 6,777.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.96 : 12,268.40 = 4,911.33 : x
  2. Step 2: Convert to fraction form
    8,889.96/12,268.40 = 4,911.33/x
  3. Step 3: Cross multiply
    8,889.96x = 12,268.40 × 4,911.33
  4. Step 4: Simplify right side
    8,889.96x = 60,254,160.97
  5. Step 5: Solve for x
    x = 60,254,160.97/8,889.96
  6. Step 6: Final answer
    x = 6,777.78

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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.