Home / 8,917.22-12,305.76-4,938.33

Finding the Fourth Proportional to 8,917.22, 12,305.76 and 4,938.33

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Solution

The fourth proportional to 8,917.22, 12,305.76 and 4,938.33 is: 6,814.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.22 : 12,305.76 = 4,938.33 : x
  2. Step 2: Convert to fraction form
    8,917.22/12,305.76 = 4,938.33/x
  3. Step 3: Cross multiply
    8,917.22x = 12,305.76 × 4,938.33
  4. Step 4: Simplify right side
    8,917.22x = 60,769,903.78
  5. Step 5: Solve for x
    x = 60,769,903.78/8,917.22
  6. Step 6: Final answer
    x = 6,814.89

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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.