Home / 12,736.10-19,100.46-4,415.78

Finding the Fourth Proportional to 12,736.10, 19,100.46 and 4,415.78

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Solution

The fourth proportional to 12,736.10, 19,100.46 and 4,415.78 is: 6,622.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,736.10 : 19,100.46 = 4,415.78 : x
  2. Step 2: Convert to fraction form
    12,736.10/19,100.46 = 4,415.78/x
  3. Step 3: Cross multiply
    12,736.10x = 19,100.46 × 4,415.78
  4. Step 4: Simplify right side
    12,736.10x = 84,343,429.26
  5. Step 5: Solve for x
    x = 84,343,429.26/12,736.10
  6. Step 6: Final answer
    x = 6,622.39

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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.