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Finding the Fourth Proportional to 12,319.25, 16,980.60 and 9,625.76

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Solution

The fourth proportional to 12,319.25, 16,980.60 and 9,625.76 is: 13,267.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.25 : 16,980.60 = 9,625.76 : x
  2. Step 2: Convert to fraction form
    12,319.25/16,980.60 = 9,625.76/x
  3. Step 3: Cross multiply
    12,319.25x = 16,980.60 × 9,625.76
  4. Step 4: Simplify right side
    12,319.25x = 163,451,180.26
  5. Step 5: Solve for x
    x = 163,451,180.26/12,319.25
  6. Step 6: Final answer
    x = 13,267.95

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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.