Home / 12,827.89-19,221.99-8,651.53

Finding the Fourth Proportional to 12,827.89, 19,221.99 and 8,651.53

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Solution

The fourth proportional to 12,827.89, 19,221.99 and 8,651.53 is: 12,963.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,827.89 : 19,221.99 = 8,651.53 : x
  2. Step 2: Convert to fraction form
    12,827.89/19,221.99 = 8,651.53/x
  3. Step 3: Cross multiply
    12,827.89x = 19,221.99 × 8,651.53
  4. Step 4: Simplify right side
    12,827.89x = 166,299,623.14
  5. Step 5: Solve for x
    x = 166,299,623.14/12,827.89
  6. Step 6: Final answer
    x = 12,963.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.