Home / 12,814.85-19,224.86-5,419.29

Finding the Fourth Proportional to 12,814.85, 19,224.86 and 5,419.29

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Solution

The fourth proportional to 12,814.85, 19,224.86 and 5,419.29 is: 8,130.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,814.85 : 19,224.86 = 5,419.29 : x
  2. Step 2: Convert to fraction form
    12,814.85/19,224.86 = 5,419.29/x
  3. Step 3: Cross multiply
    12,814.85x = 19,224.86 × 5,419.29
  4. Step 4: Simplify right side
    12,814.85x = 104,185,091.55
  5. Step 5: Solve for x
    x = 104,185,091.55/12,814.85
  6. Step 6: Final answer
    x = 8,130.03

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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.