Home / 18,729.58-28,108.60-6,894.54

Finding the Fourth Proportional to 18,729.58, 28,108.60 and 6,894.54

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Solution

The fourth proportional to 18,729.58, 28,108.60 and 6,894.54 is: 10,347.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.58 : 28,108.60 = 6,894.54 : x
  2. Step 2: Convert to fraction form
    18,729.58/28,108.60 = 6,894.54/x
  3. Step 3: Cross multiply
    18,729.58x = 28,108.60 × 6,894.54
  4. Step 4: Simplify right side
    18,729.58x = 193,795,867.04
  5. Step 5: Solve for x
    x = 193,795,867.04/18,729.58
  6. Step 6: Final answer
    x = 10,347.05

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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.