Home / 12,933.64-17,831.40-8,449.60

Finding the Fourth Proportional to 12,933.64, 17,831.40 and 8,449.60

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Solution

The fourth proportional to 12,933.64, 17,831.40 and 8,449.60 is: 11,649.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,933.64 : 17,831.40 = 8,449.60 : x
  2. Step 2: Convert to fraction form
    12,933.64/17,831.40 = 8,449.60/x
  3. Step 3: Cross multiply
    12,933.64x = 17,831.40 × 8,449.60
  4. Step 4: Simplify right side
    12,933.64x = 150,668,197.44
  5. Step 5: Solve for x
    x = 150,668,197.44/12,933.64
  6. Step 6: Final answer
    x = 11,649.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.