Home / 19,629.37-27,083.79-12,456.67

Finding the Fourth Proportional to 19,629.37, 27,083.79 and 12,456.67

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Solution

The fourth proportional to 19,629.37, 27,083.79 and 12,456.67 is: 17,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,629.37 : 27,083.79 = 12,456.67 : x
  2. Step 2: Convert to fraction form
    19,629.37/27,083.79 = 12,456.67/x
  3. Step 3: Cross multiply
    19,629.37x = 27,083.79 × 12,456.67
  4. Step 4: Simplify right side
    19,629.37x = 337,373,834.38
  5. Step 5: Solve for x
    x = 337,373,834.38/19,629.37
  6. Step 6: Final answer
    x = 17,187.20

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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.