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Finding the Fourth Proportional to 18,171.51, 27,265.01 and 9,412.59

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Solution

The fourth proportional to 18,171.51, 27,265.01 and 9,412.59 is: 14,122.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.51 : 27,265.01 = 9,412.59 : x
  2. Step 2: Convert to fraction form
    18,171.51/27,265.01 = 9,412.59/x
  3. Step 3: Cross multiply
    18,171.51x = 27,265.01 × 9,412.59
  4. Step 4: Simplify right side
    18,171.51x = 256,634,313.41
  5. Step 5: Solve for x
    x = 256,634,313.41/18,171.51
  6. Step 6: Final answer
    x = 14,122.89

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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.