Home / 7,727.09-10,661.58-5,213.86

Finding the Fourth Proportional to 7,727.09, 10,661.58 and 5,213.86

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Solution

The fourth proportional to 7,727.09, 10,661.58 and 5,213.86 is: 7,193.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.09 : 10,661.58 = 5,213.86 : x
  2. Step 2: Convert to fraction form
    7,727.09/10,661.58 = 5,213.86/x
  3. Step 3: Cross multiply
    7,727.09x = 10,661.58 × 5,213.86
  4. Step 4: Simplify right side
    7,727.09x = 55,587,958.84
  5. Step 5: Solve for x
    x = 55,587,958.84/7,727.09
  6. Step 6: Final answer
    x = 7,193.91

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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.