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Finding the Fourth Proportional to 17,978.66, 26,948.51 and 9,201.54

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Solution

The fourth proportional to 17,978.66, 26,948.51 and 9,201.54 is: 13,792.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,978.66 : 26,948.51 = 9,201.54 : x
  2. Step 2: Convert to fraction form
    17,978.66/26,948.51 = 9,201.54/x
  3. Step 3: Cross multiply
    17,978.66x = 26,948.51 × 9,201.54
  4. Step 4: Simplify right side
    17,978.66x = 247,967,792.71
  5. Step 5: Solve for x
    x = 247,967,792.71/17,978.66
  6. Step 6: Final answer
    x = 13,792.34

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.