Home / 12,098.06-18,218.15-10,556.45

Finding the Fourth Proportional to 12,098.06, 18,218.15 and 10,556.45

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Solution

The fourth proportional to 12,098.06, 18,218.15 and 10,556.45 is: 15,896.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,098.06 : 18,218.15 = 10,556.45 : x
  2. Step 2: Convert to fraction form
    12,098.06/18,218.15 = 10,556.45/x
  3. Step 3: Cross multiply
    12,098.06x = 18,218.15 × 10,556.45
  4. Step 4: Simplify right side
    12,098.06x = 192,318,982.57
  5. Step 5: Solve for x
    x = 192,318,982.57/12,098.06
  6. Step 6: Final answer
    x = 15,896.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.