Home / 12,736.26-19,079.53-8,340.39

Finding the Fourth Proportional to 12,736.26, 19,079.53 and 8,340.39

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Solution

The fourth proportional to 12,736.26, 19,079.53 and 8,340.39 is: 12,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,736.26 : 19,079.53 = 8,340.39 : x
  2. Step 2: Convert to fraction form
    12,736.26/19,079.53 = 8,340.39/x
  3. Step 3: Cross multiply
    12,736.26x = 19,079.53 × 8,340.39
  4. Step 4: Simplify right side
    12,736.26x = 159,130,584.12
  5. Step 5: Solve for x
    x = 159,130,584.12/12,736.26
  6. Step 6: Final answer
    x = 12,494.30

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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.