Home / 26,511.87-39,767.60-6,790.40

Finding the Fourth Proportional to 26,511.87, 39,767.60 and 6,790.40

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Solution

The fourth proportional to 26,511.87, 39,767.60 and 6,790.40 is: 10,185.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,511.87 : 39,767.60 = 6,790.40 : x
  2. Step 2: Convert to fraction form
    26,511.87/39,767.60 = 6,790.40/x
  3. Step 3: Cross multiply
    26,511.87x = 39,767.60 × 6,790.40
  4. Step 4: Simplify right side
    26,511.87x = 270,037,678.25
  5. Step 5: Solve for x
    x = 270,037,678.25/26,511.87
  6. Step 6: Final answer
    x = 10,185.54

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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.