Home / 7,831.69-11,747.53-2,637.56

Finding the Fourth Proportional to 7,831.69, 11,747.53 and 2,637.56

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Solution

The fourth proportional to 7,831.69, 11,747.53 and 2,637.56 is: 3,956.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.69 : 11,747.53 = 2,637.56 : x
  2. Step 2: Convert to fraction form
    7,831.69/11,747.53 = 2,637.56/x
  3. Step 3: Cross multiply
    7,831.69x = 11,747.53 × 2,637.56
  4. Step 4: Simplify right side
    7,831.69x = 30,984,847.89
  5. Step 5: Solve for x
    x = 30,984,847.89/7,831.69
  6. Step 6: Final answer
    x = 3,956.34

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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.