Home / 18,794.33-25,924.78-12,420.98

Finding the Fourth Proportional to 18,794.33, 25,924.78 and 12,420.98

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Solution

The fourth proportional to 18,794.33, 25,924.78 and 12,420.98 is: 17,133.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.33 : 25,924.78 = 12,420.98 : x
  2. Step 2: Convert to fraction form
    18,794.33/25,924.78 = 12,420.98/x
  3. Step 3: Cross multiply
    18,794.33x = 25,924.78 × 12,420.98
  4. Step 4: Simplify right side
    18,794.33x = 322,011,173.88
  5. Step 5: Solve for x
    x = 322,011,173.88/18,794.33
  6. Step 6: Final answer
    x = 17,133.42

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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.