Home / 19,165.05-26,447.73-10,781.55

Finding the Fourth Proportional to 19,165.05, 26,447.73 and 10,781.55

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Solution

The fourth proportional to 19,165.05, 26,447.73 and 10,781.55 is: 14,878.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165.05 : 26,447.73 = 10,781.55 : x
  2. Step 2: Convert to fraction form
    19,165.05/26,447.73 = 10,781.55/x
  3. Step 3: Cross multiply
    19,165.05x = 26,447.73 × 10,781.55
  4. Step 4: Simplify right side
    19,165.05x = 285,147,523.38
  5. Step 5: Solve for x
    x = 285,147,523.38/19,165.05
  6. Step 6: Final answer
    x = 14,878.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.