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Finding the Fourth Proportional to 12,051.90, 18,064.35 and 5,814.90

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Solution

The fourth proportional to 12,051.90, 18,064.35 and 5,814.90 is: 8,715.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,051.90 : 18,064.35 = 5,814.90 : x
  2. Step 2: Convert to fraction form
    12,051.90/18,064.35 = 5,814.90/x
  3. Step 3: Cross multiply
    12,051.90x = 18,064.35 × 5,814.90
  4. Step 4: Simplify right side
    12,051.90x = 105,042,388.82
  5. Step 5: Solve for x
    x = 105,042,388.82/12,051.90
  6. Step 6: Final answer
    x = 8,715.84

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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.