Home / 12,821.76-19,235.43-4,056.75

Finding the Fourth Proportional to 12,821.76, 19,235.43 and 4,056.75

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Solution

The fourth proportional to 12,821.76, 19,235.43 and 4,056.75 is: 6,086.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.76 : 19,235.43 = 4,056.75 : x
  2. Step 2: Convert to fraction form
    12,821.76/19,235.43 = 4,056.75/x
  3. Step 3: Cross multiply
    12,821.76x = 19,235.43 × 4,056.75
  4. Step 4: Simplify right side
    12,821.76x = 78,033,330.65
  5. Step 5: Solve for x
    x = 78,033,330.65/12,821.76
  6. Step 6: Final answer
    x = 6,086.01

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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.