Home / 18,367.50-25,339.88-11,992.06

Finding the Fourth Proportional to 18,367.50, 25,339.88 and 11,992.06

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Solution

The fourth proportional to 18,367.50, 25,339.88 and 11,992.06 is: 16,544.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,367.50 : 25,339.88 = 11,992.06 : x
  2. Step 2: Convert to fraction form
    18,367.50/25,339.88 = 11,992.06/x
  3. Step 3: Cross multiply
    18,367.50x = 25,339.88 × 11,992.06
  4. Step 4: Simplify right side
    18,367.50x = 303,877,423.01
  5. Step 5: Solve for x
    x = 303,877,423.01/18,367.50
  6. Step 6: Final answer
    x = 16,544.30

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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.