Home / 13,220.72-19,831.62-3,360.26

Finding the Fourth Proportional to 13,220.72, 19,831.62 and 3,360.26

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Solution

The fourth proportional to 13,220.72, 19,831.62 and 3,360.26 is: 5,040.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.72 : 19,831.62 = 3,360.26 : x
  2. Step 2: Convert to fraction form
    13,220.72/19,831.62 = 3,360.26/x
  3. Step 3: Cross multiply
    13,220.72x = 19,831.62 × 3,360.26
  4. Step 4: Simplify right side
    13,220.72x = 66,639,300.26
  5. Step 5: Solve for x
    x = 66,639,300.26/13,220.72
  6. Step 6: Final answer
    x = 5,040.52

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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.