Home / 14,429.56-19,913.31-8,379.36

Finding the Fourth Proportional to 14,429.56, 19,913.31 and 8,379.36

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Solution

The fourth proportional to 14,429.56, 19,913.31 and 8,379.36 is: 11,563.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,429.56 : 19,913.31 = 8,379.36 : x
  2. Step 2: Convert to fraction form
    14,429.56/19,913.31 = 8,379.36/x
  3. Step 3: Cross multiply
    14,429.56x = 19,913.31 × 8,379.36
  4. Step 4: Simplify right side
    14,429.56x = 166,860,793.28
  5. Step 5: Solve for x
    x = 166,860,793.28/14,429.56
  6. Step 6: Final answer
    x = 11,563.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.