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Finding the Fourth Proportional to 14,530.66, 21,777.68 and 7,866.88

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Solution

The fourth proportional to 14,530.66, 21,777.68 and 7,866.88 is: 11,790.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,530.66 : 21,777.68 = 7,866.88 : x
  2. Step 2: Convert to fraction form
    14,530.66/21,777.68 = 7,866.88/x
  3. Step 3: Cross multiply
    14,530.66x = 21,777.68 × 7,866.88
  4. Step 4: Simplify right side
    14,530.66x = 171,322,395.24
  5. Step 5: Solve for x
    x = 171,322,395.24/14,530.66
  6. Step 6: Final answer
    x = 11,790.41

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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.