Home / 13,556.14-20,332.13-3,696.21

Finding the Fourth Proportional to 13,556.14, 20,332.13 and 3,696.21

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Solution

The fourth proportional to 13,556.14, 20,332.13 and 3,696.21 is: 5,543.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.14 : 20,332.13 = 3,696.21 : x
  2. Step 2: Convert to fraction form
    13,556.14/20,332.13 = 3,696.21/x
  3. Step 3: Cross multiply
    13,556.14x = 20,332.13 × 3,696.21
  4. Step 4: Simplify right side
    13,556.14x = 75,151,822.23
  5. Step 5: Solve for x
    x = 75,151,822.23/13,556.14
  6. Step 6: Final answer
    x = 5,543.75

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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.