Home / 8,917.70-12,305.54-4,938.42

Finding the Fourth Proportional to 8,917.70, 12,305.54 and 4,938.42

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Solution

The fourth proportional to 8,917.70, 12,305.54 and 4,938.42 is: 6,814.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.70 : 12,305.54 = 4,938.42 : x
  2. Step 2: Convert to fraction form
    8,917.70/12,305.54 = 4,938.42/x
  3. Step 3: Cross multiply
    8,917.70x = 12,305.54 × 4,938.42
  4. Step 4: Simplify right side
    8,917.70x = 60,769,900.15
  5. Step 5: Solve for x
    x = 60,769,900.15/8,917.70
  6. Step 6: Final answer
    x = 6,814.53

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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.