Home / 14,189.21-21,261.73-5,419.34

Finding the Fourth Proportional to 14,189.21, 21,261.73 and 5,419.34

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Solution

The fourth proportional to 14,189.21, 21,261.73 and 5,419.34 is: 8,120.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,189.21 : 21,261.73 = 5,419.34 : x
  2. Step 2: Convert to fraction form
    14,189.21/21,261.73 = 5,419.34/x
  3. Step 3: Cross multiply
    14,189.21x = 21,261.73 × 5,419.34
  4. Step 4: Simplify right side
    14,189.21x = 115,224,543.86
  5. Step 5: Solve for x
    x = 115,224,543.86/14,189.21
  6. Step 6: Final answer
    x = 8,120.57

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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.