Home / 12,380.66-18,566.91-5,714.43

Finding the Fourth Proportional to 12,380.66, 18,566.91 and 5,714.43

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Solution

The fourth proportional to 12,380.66, 18,566.91 and 5,714.43 is: 8,569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380.66 : 18,566.91 = 5,714.43 : x
  2. Step 2: Convert to fraction form
    12,380.66/18,566.91 = 5,714.43/x
  3. Step 3: Cross multiply
    12,380.66x = 18,566.91 × 5,714.43
  4. Step 4: Simplify right side
    12,380.66x = 106,099,307.51
  5. Step 5: Solve for x
    x = 106,099,307.51/12,380.66
  6. Step 6: Final answer
    x = 8,569.76

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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.