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Finding the Fourth Proportional to 12,759.04, 17,605.44 and 7,722.40

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Solution

The fourth proportional to 12,759.04, 17,605.44 and 7,722.40 is: 10,655.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.04 : 17,605.44 = 7,722.40 : x
  2. Step 2: Convert to fraction form
    12,759.04/17,605.44 = 7,722.40/x
  3. Step 3: Cross multiply
    12,759.04x = 17,605.44 × 7,722.40
  4. Step 4: Simplify right side
    12,759.04x = 135,956,249.86
  5. Step 5: Solve for x
    x = 135,956,249.86/12,759.04
  6. Step 6: Final answer
    x = 10,655.68

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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.