Home / 18,461.33-27,706.46-12,878.36

Finding the Fourth Proportional to 18,461.33, 27,706.46 and 12,878.36

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Solution

The fourth proportional to 18,461.33, 27,706.46 and 12,878.36 is: 19,327.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461.33 : 27,706.46 = 12,878.36 : x
  2. Step 2: Convert to fraction form
    18,461.33/27,706.46 = 12,878.36/x
  3. Step 3: Cross multiply
    18,461.33x = 27,706.46 × 12,878.36
  4. Step 4: Simplify right side
    18,461.33x = 356,813,563.28
  5. Step 5: Solve for x
    x = 356,813,563.28/18,461.33
  6. Step 6: Final answer
    x = 19,327.62

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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.