Home / 12,858.92-19,288.18-4,093.76

Finding the Fourth Proportional to 12,858.92, 19,288.18 and 4,093.76

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Solution

The fourth proportional to 12,858.92, 19,288.18 and 4,093.76 is: 6,140.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.92 : 19,288.18 = 4,093.76 : x
  2. Step 2: Convert to fraction form
    12,858.92/19,288.18 = 4,093.76/x
  3. Step 3: Cross multiply
    12,858.92x = 19,288.18 × 4,093.76
  4. Step 4: Simplify right side
    12,858.92x = 78,961,179.76
  5. Step 5: Solve for x
    x = 78,961,179.76/12,858.92
  6. Step 6: Final answer
    x = 6,140.58

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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.