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Finding the Fourth Proportional to 18,141.63, 27,212.44 and 6,454.88

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Solution

The fourth proportional to 18,141.63, 27,212.44 and 6,454.88 is: 9,682.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,141.63 : 27,212.44 = 6,454.88 : x
  2. Step 2: Convert to fraction form
    18,141.63/27,212.44 = 6,454.88/x
  3. Step 3: Cross multiply
    18,141.63x = 27,212.44 × 6,454.88
  4. Step 4: Simplify right side
    18,141.63x = 175,653,034.71
  5. Step 5: Solve for x
    x = 175,653,034.71/18,141.63
  6. Step 6: Final answer
    x = 9,682.32

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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.