Home / 13,285.20-19,927.80-4,051.20

Finding the Fourth Proportional to 13,285.20, 19,927.80 and 4,051.20

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Solution

The fourth proportional to 13,285.20, 19,927.80 and 4,051.20 is: 6,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.20 : 19,927.80 = 4,051.20 : x
  2. Step 2: Convert to fraction form
    13,285.20/19,927.80 = 4,051.20/x
  3. Step 3: Cross multiply
    13,285.20x = 19,927.80 × 4,051.20
  4. Step 4: Simplify right side
    13,285.20x = 80,731,503.36
  5. Step 5: Solve for x
    x = 80,731,503.36/13,285.20
  6. Step 6: Final answer
    x = 6,076.80

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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.