Home / 7,728.57-11,588.66-3,509.51

Finding the Fourth Proportional to 7,728.57, 11,588.66 and 3,509.51

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Solution

The fourth proportional to 7,728.57, 11,588.66 and 3,509.51 is: 5,262.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.57 : 11,588.66 = 3,509.51 : x
  2. Step 2: Convert to fraction form
    7,728.57/11,588.66 = 3,509.51/x
  3. Step 3: Cross multiply
    7,728.57x = 11,588.66 × 3,509.51
  4. Step 4: Simplify right side
    7,728.57x = 40,670,497.96
  5. Step 5: Solve for x
    x = 40,670,497.96/7,728.57
  6. Step 6: Final answer
    x = 5,262.36

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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.