Home / 8,917.22-12,305.72-4,938.60

Finding the Fourth Proportional to 8,917.22, 12,305.72 and 4,938.60

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Solution

The fourth proportional to 8,917.22, 12,305.72 and 4,938.60 is: 6,815.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.22 : 12,305.72 = 4,938.60 : x
  2. Step 2: Convert to fraction form
    8,917.22/12,305.72 = 4,938.60/x
  3. Step 3: Cross multiply
    8,917.22x = 12,305.72 × 4,938.60
  4. Step 4: Simplify right side
    8,917.22x = 60,773,028.79
  5. Step 5: Solve for x
    x = 60,773,028.79/8,917.22
  6. Step 6: Final answer
    x = 6,815.24

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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.