Home / 6,845.81-9,447.24-3,861.65

Finding the Fourth Proportional to 6,845.81, 9,447.24 and 3,861.65

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Solution

The fourth proportional to 6,845.81, 9,447.24 and 3,861.65 is: 5,329.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,845.81 : 9,447.24 = 3,861.65 : x
  2. Step 2: Convert to fraction form
    6,845.81/9,447.24 = 3,861.65/x
  3. Step 3: Cross multiply
    6,845.81x = 9,447.24 × 3,861.65
  4. Step 4: Simplify right side
    6,845.81x = 36,481,887.11
  5. Step 5: Solve for x
    x = 36,481,887.11/6,845.81
  6. Step 6: Final answer
    x = 5,329.08

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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.