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Finding the Fourth Proportional to 17,636.05, 26,485.01 and 13,691.75

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Solution

The fourth proportional to 17,636.05, 26,485.01 and 13,691.75 is: 20,561.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,636.05 : 26,485.01 = 13,691.75 : x
  2. Step 2: Convert to fraction form
    17,636.05/26,485.01 = 13,691.75/x
  3. Step 3: Cross multiply
    17,636.05x = 26,485.01 × 13,691.75
  4. Step 4: Simplify right side
    17,636.05x = 362,626,135.11
  5. Step 5: Solve for x
    x = 362,626,135.11/17,636.05
  6. Step 6: Final answer
    x = 20,561.65

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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.