Home / 18,486.75-25,511.73-10,103.25

Finding the Fourth Proportional to 18,486.75, 25,511.73 and 10,103.25

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Solution

The fourth proportional to 18,486.75, 25,511.73 and 10,103.25 is: 13,942.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,486.75 : 25,511.73 = 10,103.25 : x
  2. Step 2: Convert to fraction form
    18,486.75/25,511.73 = 10,103.25/x
  3. Step 3: Cross multiply
    18,486.75x = 25,511.73 × 10,103.25
  4. Step 4: Simplify right side
    18,486.75x = 257,751,386.12
  5. Step 5: Solve for x
    x = 257,751,386.12/18,486.75
  6. Step 6: Final answer
    x = 13,942.49

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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.