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Finding the Fourth Proportional to 18,196.30, 27,106.65 and 17,645.64

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Solution

The fourth proportional to 18,196.30, 27,106.65 and 17,645.64 is: 26,286.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,196.30 : 27,106.65 = 17,645.64 : x
  2. Step 2: Convert to fraction form
    18,196.30/27,106.65 = 17,645.64/x
  3. Step 3: Cross multiply
    18,196.30x = 27,106.65 × 17,645.64
  4. Step 4: Simplify right side
    18,196.30x = 478,314,187.51
  5. Step 5: Solve for x
    x = 478,314,187.51/18,196.30
  6. Step 6: Final answer
    x = 26,286.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.