Home / 18,822.98-25,975.85-12,854.49

Finding the Fourth Proportional to 18,822.98, 25,975.85 and 12,854.49

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Solution

The fourth proportional to 18,822.98, 25,975.85 and 12,854.49 is: 17,739.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,822.98 : 25,975.85 = 12,854.49 : x
  2. Step 2: Convert to fraction form
    18,822.98/25,975.85 = 12,854.49/x
  3. Step 3: Cross multiply
    18,822.98x = 25,975.85 × 12,854.49
  4. Step 4: Simplify right side
    18,822.98x = 333,906,239.79
  5. Step 5: Solve for x
    x = 333,906,239.79/18,822.98
  6. Step 6: Final answer
    x = 17,739.29

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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.