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Finding the Fourth Proportional to 18,832.46, 28,248.73 and 7,731.34

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Solution

The fourth proportional to 18,832.46, 28,248.73 and 7,731.34 is: 11,597.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.46 : 28,248.73 = 7,731.34 : x
  2. Step 2: Convert to fraction form
    18,832.46/28,248.73 = 7,731.34/x
  3. Step 3: Cross multiply
    18,832.46x = 28,248.73 × 7,731.34
  4. Step 4: Simplify right side
    18,832.46x = 218,400,446.25
  5. Step 5: Solve for x
    x = 218,400,446.25/18,832.46
  6. Step 6: Final answer
    x = 11,597.02

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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.