Home / 12,971.89-19,457.82-3,737.89

Finding the Fourth Proportional to 12,971.89, 19,457.82 and 3,737.89

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Solution

The fourth proportional to 12,971.89, 19,457.82 and 3,737.89 is: 5,606.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971.89 : 19,457.82 = 3,737.89 : x
  2. Step 2: Convert to fraction form
    12,971.89/19,457.82 = 3,737.89/x
  3. Step 3: Cross multiply
    12,971.89x = 19,457.82 × 3,737.89
  4. Step 4: Simplify right side
    12,971.89x = 72,731,190.80
  5. Step 5: Solve for x
    x = 72,731,190.80/12,971.89
  6. Step 6: Final answer
    x = 5,606.83

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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.