Home / 6,513.08-9,771.71-2,129.54

Finding the Fourth Proportional to 6,513.08, 9,771.71 and 2,129.54

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Solution

The fourth proportional to 6,513.08, 9,771.71 and 2,129.54 is: 3,194.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.08 : 9,771.71 = 2,129.54 : x
  2. Step 2: Convert to fraction form
    6,513.08/9,771.71 = 2,129.54/x
  3. Step 3: Cross multiply
    6,513.08x = 9,771.71 × 2,129.54
  4. Step 4: Simplify right side
    6,513.08x = 20,809,187.81
  5. Step 5: Solve for x
    x = 20,809,187.81/6,513.08
  6. Step 6: Final answer
    x = 3,194.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.