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Finding the Fourth Proportional to 12,335.25, 17,018.60 and 7,550.21

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Solution

The fourth proportional to 12,335.25, 17,018.60 and 7,550.21 is: 10,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,335.25 : 17,018.60 = 7,550.21 : x
  2. Step 2: Convert to fraction form
    12,335.25/17,018.60 = 7,550.21/x
  3. Step 3: Cross multiply
    12,335.25x = 17,018.60 × 7,550.21
  4. Step 4: Simplify right side
    12,335.25x = 128,493,881.06
  5. Step 5: Solve for x
    x = 128,493,881.06/12,335.25
  6. Step 6: Final answer
    x = 10,416.80

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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.