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Finding the Fourth Proportional to 12,850.80, 19,243.80 and 8,444.40

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Solution

The fourth proportional to 12,850.80, 19,243.80 and 8,444.40 is: 12,645.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,850.80 : 19,243.80 = 8,444.40 : x
  2. Step 2: Convert to fraction form
    12,850.80/19,243.80 = 8,444.40/x
  3. Step 3: Cross multiply
    12,850.80x = 19,243.80 × 8,444.40
  4. Step 4: Simplify right side
    12,850.80x = 162,502,344.72
  5. Step 5: Solve for x
    x = 162,502,344.72/12,850.80
  6. Step 6: Final answer
    x = 12,645.31

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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.