Home / 18,486.54-25,511.49-10,103.22

Finding the Fourth Proportional to 18,486.54, 25,511.49 and 10,103.22

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Solution

The fourth proportional to 18,486.54, 25,511.49 and 10,103.22 is: 13,942.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,486.54 : 25,511.49 = 10,103.22 : x
  2. Step 2: Convert to fraction form
    18,486.54/25,511.49 = 10,103.22/x
  3. Step 3: Cross multiply
    18,486.54x = 25,511.49 × 10,103.22
  4. Step 4: Simplify right side
    18,486.54x = 257,748,196.00
  5. Step 5: Solve for x
    x = 257,748,196.00/18,486.54
  6. Step 6: Final answer
    x = 13,942.48

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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.