Home / 13,261.89-19,895.73-4,377.61

Finding the Fourth Proportional to 13,261.89, 19,895.73 and 4,377.61

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Solution

The fourth proportional to 13,261.89, 19,895.73 and 4,377.61 is: 6,567.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.89 : 19,895.73 = 4,377.61 : x
  2. Step 2: Convert to fraction form
    13,261.89/19,895.73 = 4,377.61/x
  3. Step 3: Cross multiply
    13,261.89x = 19,895.73 × 4,377.61
  4. Step 4: Simplify right side
    13,261.89x = 87,095,755.06
  5. Step 5: Solve for x
    x = 87,095,755.06/13,261.89
  6. Step 6: Final answer
    x = 6,567.37

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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.