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Finding the Fourth Proportional to 19,170.25, 26,445.67 and 12,362.47

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Solution

The fourth proportional to 19,170.25, 26,445.67 and 12,362.47 is: 17,054.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,170.25 : 26,445.67 = 12,362.47 : x
  2. Step 2: Convert to fraction form
    19,170.25/26,445.67 = 12,362.47/x
  3. Step 3: Cross multiply
    19,170.25x = 26,445.67 × 12,362.47
  4. Step 4: Simplify right side
    19,170.25x = 326,933,897.20
  5. Step 5: Solve for x
    x = 326,933,897.20/19,170.25
  6. Step 6: Final answer
    x = 17,054.23

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