Home / 13,201.76-19,802.64-3,969.12

Finding the Fourth Proportional to 13,201.76, 19,802.64 and 3,969.12

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Solution

The fourth proportional to 13,201.76, 19,802.64 and 3,969.12 is: 5,953.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.76 : 19,802.64 = 3,969.12 : x
  2. Step 2: Convert to fraction form
    13,201.76/19,802.64 = 3,969.12/x
  3. Step 3: Cross multiply
    13,201.76x = 19,802.64 × 3,969.12
  4. Step 4: Simplify right side
    13,201.76x = 78,599,054.48
  5. Step 5: Solve for x
    x = 78,599,054.48/13,201.76
  6. Step 6: Final answer
    x = 5,953.68

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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.