Home / 13,561.54-18,736.32-12,823.36

Finding the Fourth Proportional to 13,561.54, 18,736.32 and 12,823.36

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Solution

The fourth proportional to 13,561.54, 18,736.32 and 12,823.36 is: 17,716.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.54 : 18,736.32 = 12,823.36 : x
  2. Step 2: Convert to fraction form
    13,561.54/18,736.32 = 12,823.36/x
  3. Step 3: Cross multiply
    13,561.54x = 18,736.32 × 12,823.36
  4. Step 4: Simplify right side
    13,561.54x = 240,262,576.44
  5. Step 5: Solve for x
    x = 240,262,576.44/13,561.54
  6. Step 6: Final answer
    x = 17,716.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.