Home / 12,896.63-19,343.70-4,129.19

Finding the Fourth Proportional to 12,896.63, 19,343.70 and 4,129.19

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Solution

The fourth proportional to 12,896.63, 19,343.70 and 4,129.19 is: 6,193.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,896.63 : 19,343.70 = 4,129.19 : x
  2. Step 2: Convert to fraction form
    12,896.63/19,343.70 = 4,129.19/x
  3. Step 3: Cross multiply
    12,896.63x = 19,343.70 × 4,129.19
  4. Step 4: Simplify right side
    12,896.63x = 79,873,812.60
  5. Step 5: Solve for x
    x = 79,873,812.60/12,896.63
  6. Step 6: Final answer
    x = 6,193.39

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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.