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Finding the Third Proportional to 15,778 and 19,066

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Solution

The third proportional to 15,778 and 19,066 is: 23,039.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,778 : 19,066 = 19,066 : x
  2. Step 2: Convert to fraction form
    15,778/19,066 = 19,066/x
  3. Step 3: Cross multiply
    15,778x = 19,066 × 19,066
  4. Step 4: Simplify right side
    15,778x = 363,512,356
  5. Step 5: Solve for x
    x = 363,512,356/15,778
  6. Step 6: Final answer
    x = 23,039.19

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.