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Finding the Fourth Proportional to 18,371.19, 27,569.04 and 11,802.09

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Solution

The fourth proportional to 18,371.19, 27,569.04 and 11,802.09 is: 17,711.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,371.19 : 27,569.04 = 11,802.09 : x
  2. Step 2: Convert to fraction form
    18,371.19/27,569.04 = 11,802.09/x
  3. Step 3: Cross multiply
    18,371.19x = 27,569.04 × 11,802.09
  4. Step 4: Simplify right side
    18,371.19x = 325,372,291.29
  5. Step 5: Solve for x
    x = 325,372,291.29/18,371.19
  6. Step 6: Final answer
    x = 17,711.01

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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.