Home / 26,694.40-39,993.60-12,812.80

Finding the Fourth Proportional to 26,694.40, 39,993.60 and 12,812.80

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Solution

The fourth proportional to 26,694.40, 39,993.60 and 12,812.80 is: 19,196.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,694.40 : 39,993.60 = 12,812.80 : x
  2. Step 2: Convert to fraction form
    26,694.40/39,993.60 = 12,812.80/x
  3. Step 3: Cross multiply
    26,694.40x = 39,993.60 × 12,812.80
  4. Step 4: Simplify right side
    26,694.40x = 512,429,998.08
  5. Step 5: Solve for x
    x = 512,429,998.08/26,694.40
  6. Step 6: Final answer
    x = 19,196.16

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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.