Home / 9,221.41-13,831.76-2,647.59

Finding the Fourth Proportional to 9,221.41, 13,831.76 and 2,647.59

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Solution

The fourth proportional to 9,221.41, 13,831.76 and 2,647.59 is: 3,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.41 : 13,831.76 = 2,647.59 : x
  2. Step 2: Convert to fraction form
    9,221.41/13,831.76 = 2,647.59/x
  3. Step 3: Cross multiply
    9,221.41x = 13,831.76 × 2,647.59
  4. Step 4: Simplify right side
    9,221.41x = 36,620,816.22
  5. Step 5: Solve for x
    x = 36,620,816.22/9,221.41
  6. Step 6: Final answer
    x = 3,971.28

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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.