Home / 12,323.26-18,479.40-3,556.09

Finding the Fourth Proportional to 12,323.26, 18,479.40 and 3,556.09

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Solution

The fourth proportional to 12,323.26, 18,479.40 and 3,556.09 is: 5,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,323.26 : 18,479.40 = 3,556.09 : x
  2. Step 2: Convert to fraction form
    12,323.26/18,479.40 = 3,556.09/x
  3. Step 3: Cross multiply
    12,323.26x = 18,479.40 × 3,556.09
  4. Step 4: Simplify right side
    12,323.26x = 65,714,409.55
  5. Step 5: Solve for x
    x = 65,714,409.55/12,323.26
  6. Step 6: Final answer
    x = 5,332.55

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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.