Home / 12,823.78-19,218.30-5,795.03

Finding the Fourth Proportional to 12,823.78, 19,218.30 and 5,795.03

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Solution

The fourth proportional to 12,823.78, 19,218.30 and 5,795.03 is: 8,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,823.78 : 19,218.30 = 5,795.03 : x
  2. Step 2: Convert to fraction form
    12,823.78/19,218.30 = 5,795.03/x
  3. Step 3: Cross multiply
    12,823.78x = 19,218.30 × 5,795.03
  4. Step 4: Simplify right side
    12,823.78x = 111,370,625.05
  5. Step 5: Solve for x
    x = 111,370,625.05/12,823.78
  6. Step 6: Final answer
    x = 8,684.70

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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.