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Finding the Fourth Proportional to 12,434.60, 18,625.26 and 7,756.04

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Solution

The fourth proportional to 12,434.60, 18,625.26 and 7,756.04 is: 11,617.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,434.60 : 18,625.26 = 7,756.04 : x
  2. Step 2: Convert to fraction form
    12,434.60/18,625.26 = 7,756.04/x
  3. Step 3: Cross multiply
    12,434.60x = 18,625.26 × 7,756.04
  4. Step 4: Simplify right side
    12,434.60x = 144,458,261.57
  5. Step 5: Solve for x
    x = 144,458,261.57/12,434.60
  6. Step 6: Final answer
    x = 11,617.44

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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.