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Finding the Fourth Proportional to 18,330.63, 27,495.94 and 6,643.84

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Solution

The fourth proportional to 18,330.63, 27,495.94 and 6,643.84 is: 9,965.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,330.63 : 27,495.94 = 6,643.84 : x
  2. Step 2: Convert to fraction form
    18,330.63/27,495.94 = 6,643.84/x
  3. Step 3: Cross multiply
    18,330.63x = 27,495.94 × 6,643.84
  4. Step 4: Simplify right side
    18,330.63x = 182,678,626.01
  5. Step 5: Solve for x
    x = 182,678,626.01/18,330.63
  6. Step 6: Final answer
    x = 9,965.76

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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.