Home / 13,201.22-19,802.20-3,840.86

Finding the Fourth Proportional to 13,201.22, 19,802.20 and 3,840.86

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Solution

The fourth proportional to 13,201.22, 19,802.20 and 3,840.86 is: 5,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.22 : 19,802.20 = 3,840.86 : x
  2. Step 2: Convert to fraction form
    13,201.22/19,802.20 = 3,840.86/x
  3. Step 3: Cross multiply
    13,201.22x = 19,802.20 × 3,840.86
  4. Step 4: Simplify right side
    13,201.22x = 76,057,477.89
  5. Step 5: Solve for x
    x = 76,057,477.89/13,201.22
  6. Step 6: Final answer
    x = 5,761.40

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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.