Home / 8,286.71-11,435.73-4,749.89

Finding the Fourth Proportional to 8,286.71, 11,435.73 and 4,749.89

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Solution

The fourth proportional to 8,286.71, 11,435.73 and 4,749.89 is: 6,554.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286.71 : 11,435.73 = 4,749.89 : x
  2. Step 2: Convert to fraction form
    8,286.71/11,435.73 = 4,749.89/x
  3. Step 3: Cross multiply
    8,286.71x = 11,435.73 × 4,749.89
  4. Step 4: Simplify right side
    8,286.71x = 54,318,475.62
  5. Step 5: Solve for x
    x = 54,318,475.62/8,286.71
  6. Step 6: Final answer
    x = 6,554.89

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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.