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Finding the Fourth Proportional to 12,701.56, 17,536.72 and 7,928.77

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Solution

The fourth proportional to 12,701.56, 17,536.72 and 7,928.77 is: 10,947.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,701.56 : 17,536.72 = 7,928.77 : x
  2. Step 2: Convert to fraction form
    12,701.56/17,536.72 = 7,928.77/x
  3. Step 3: Cross multiply
    12,701.56x = 17,536.72 × 7,928.77
  4. Step 4: Simplify right side
    12,701.56x = 139,044,619.43
  5. Step 5: Solve for x
    x = 139,044,619.43/12,701.56
  6. Step 6: Final answer
    x = 10,947.05

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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.