Home / 13,221.33-19,831.41-4,456.20

Finding the Fourth Proportional to 13,221.33, 19,831.41 and 4,456.20

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Solution

The fourth proportional to 13,221.33, 19,831.41 and 4,456.20 is: 6,684.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,221.33 : 19,831.41 = 4,456.20 : x
  2. Step 2: Convert to fraction form
    13,221.33/19,831.41 = 4,456.20/x
  3. Step 3: Cross multiply
    13,221.33x = 19,831.41 × 4,456.20
  4. Step 4: Simplify right side
    13,221.33x = 88,372,729.24
  5. Step 5: Solve for x
    x = 88,372,729.24/13,221.33
  6. Step 6: Final answer
    x = 6,684.10

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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.