Home / 12,852.68-19,280.38-4,085.54

Finding the Fourth Proportional to 12,852.68, 19,280.38 and 4,085.54

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Solution

The fourth proportional to 12,852.68, 19,280.38 and 4,085.54 is: 6,128.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852.68 : 19,280.38 = 4,085.54 : x
  2. Step 2: Convert to fraction form
    12,852.68/19,280.38 = 4,085.54/x
  3. Step 3: Cross multiply
    12,852.68x = 19,280.38 × 4,085.54
  4. Step 4: Simplify right side
    12,852.68x = 78,770,737.05
  5. Step 5: Solve for x
    x = 78,770,737.05/12,852.68
  6. Step 6: Final answer
    x = 6,128.74

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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.