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Finding the Fourth Proportional to 18,326.69, 27,489.96 and 6,637.17

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Solution

The fourth proportional to 18,326.69, 27,489.96 and 6,637.17 is: 9,955.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.69 : 27,489.96 = 6,637.17 : x
  2. Step 2: Convert to fraction form
    18,326.69/27,489.96 = 6,637.17/x
  3. Step 3: Cross multiply
    18,326.69x = 27,489.96 × 6,637.17
  4. Step 4: Simplify right side
    18,326.69x = 182,455,537.81
  5. Step 5: Solve for x
    x = 182,455,537.81/18,326.69
  6. Step 6: Final answer
    x = 9,955.73

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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.