Home / 18,774.33-25,878.54-12,722.73

Finding the Fourth Proportional to 18,774.33, 25,878.54 and 12,722.73

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Solution

The fourth proportional to 18,774.33, 25,878.54 and 12,722.73 is: 17,537.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,774.33 : 25,878.54 = 12,722.73 : x
  2. Step 2: Convert to fraction form
    18,774.33/25,878.54 = 12,722.73/x
  3. Step 3: Cross multiply
    18,774.33x = 25,878.54 × 12,722.73
  4. Step 4: Simplify right side
    18,774.33x = 329,245,677.21
  5. Step 5: Solve for x
    x = 329,245,677.21/18,774.33
  6. Step 6: Final answer
    x = 17,537.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.