Home / 13,220.46-19,831.24-3,360

Finding the Fourth Proportional to 13,220.46, 19,831.24 and 3,360

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Solution

The fourth proportional to 13,220.46, 19,831.24 and 3,360 is: 5,040.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.46 : 19,831.24 = 3,360 : x
  2. Step 2: Convert to fraction form
    13,220.46/19,831.24 = 3,360/x
  3. Step 3: Cross multiply
    13,220.46x = 19,831.24 × 3,360
  4. Step 4: Simplify right side
    13,220.46x = 66,632,966.40
  5. Step 5: Solve for x
    x = 66,632,966.40/13,220.46
  6. Step 6: Final answer
    x = 5,040.14

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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.