Home / 13,977.90-20,969.93-6,081.66

Finding the Fourth Proportional to 13,977.90, 20,969.93 and 6,081.66

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Solution

The fourth proportional to 13,977.90, 20,969.93 and 6,081.66 is: 9,123.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.90 : 20,969.93 = 6,081.66 : x
  2. Step 2: Convert to fraction form
    13,977.90/20,969.93 = 6,081.66/x
  3. Step 3: Cross multiply
    13,977.90x = 20,969.93 × 6,081.66
  4. Step 4: Simplify right side
    13,977.90x = 127,531,879.63
  5. Step 5: Solve for x
    x = 127,531,879.63/13,977.90
  6. Step 6: Final answer
    x = 9,123.82

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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.