Home / 12,810.96-19,211.58-4,489.02

Finding the Fourth Proportional to 12,810.96, 19,211.58 and 4,489.02

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Solution

The fourth proportional to 12,810.96, 19,211.58 and 4,489.02 is: 6,731.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810.96 : 19,211.58 = 4,489.02 : x
  2. Step 2: Convert to fraction form
    12,810.96/19,211.58 = 4,489.02/x
  3. Step 3: Cross multiply
    12,810.96x = 19,211.58 × 4,489.02
  4. Step 4: Simplify right side
    12,810.96x = 86,241,166.85
  5. Step 5: Solve for x
    x = 86,241,166.85/12,810.96
  6. Step 6: Final answer
    x = 6,731.83

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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.