Home / 12,896.92-19,347.08-4,128.76

Finding the Fourth Proportional to 12,896.92, 19,347.08 and 4,128.76

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Solution

The fourth proportional to 12,896.92, 19,347.08 and 4,128.76 is: 6,193.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,896.92 : 19,347.08 = 4,128.76 : x
  2. Step 2: Convert to fraction form
    12,896.92/19,347.08 = 4,128.76/x
  3. Step 3: Cross multiply
    12,896.92x = 19,347.08 × 4,128.76
  4. Step 4: Simplify right side
    12,896.92x = 79,879,450.02
  5. Step 5: Solve for x
    x = 79,879,450.02/12,896.92
  6. Step 6: Final answer
    x = 6,193.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.