Home / 18,961.51-28,446.69-6,481.63

Finding the Fourth Proportional to 18,961.51, 28,446.69 and 6,481.63

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Solution

The fourth proportional to 18,961.51, 28,446.69 and 6,481.63 is: 9,723.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,961.51 : 28,446.69 = 6,481.63 : x
  2. Step 2: Convert to fraction form
    18,961.51/28,446.69 = 6,481.63/x
  3. Step 3: Cross multiply
    18,961.51x = 28,446.69 × 6,481.63
  4. Step 4: Simplify right side
    18,961.51x = 184,380,777.07
  5. Step 5: Solve for x
    x = 184,380,777.07/18,961.51
  6. Step 6: Final answer
    x = 9,723.95

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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.