Home / 12,831.75-19,247.67-4,066.65

Finding the Fourth Proportional to 12,831.75, 19,247.67 and 4,066.65

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Solution

The fourth proportional to 12,831.75, 19,247.67 and 4,066.65 is: 6,099.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831.75 : 19,247.67 = 4,066.65 : x
  2. Step 2: Convert to fraction form
    12,831.75/19,247.67 = 4,066.65/x
  3. Step 3: Cross multiply
    12,831.75x = 19,247.67 × 4,066.65
  4. Step 4: Simplify right side
    12,831.75x = 78,273,537.21
  5. Step 5: Solve for x
    x = 78,273,537.21/12,831.75
  6. Step 6: Final answer
    x = 6,099.99

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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.