Home / 13,556.81-20,334.63-3,696.06

Finding the Fourth Proportional to 13,556.81, 20,334.63 and 3,696.06

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Solution

The fourth proportional to 13,556.81, 20,334.63 and 3,696.06 is: 5,543.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.81 : 20,334.63 = 3,696.06 : x
  2. Step 2: Convert to fraction form
    13,556.81/20,334.63 = 3,696.06/x
  3. Step 3: Cross multiply
    13,556.81x = 20,334.63 × 3,696.06
  4. Step 4: Simplify right side
    13,556.81x = 75,158,081.88
  5. Step 5: Solve for x
    x = 75,158,081.88/13,556.81
  6. Step 6: Final answer
    x = 5,543.93

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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.