Home / 12,815.84-19,223.88-4,050.80

Finding the Fourth Proportional to 12,815.84, 19,223.88 and 4,050.80

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Solution

The fourth proportional to 12,815.84, 19,223.88 and 4,050.80 is: 6,076.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815.84 : 19,223.88 = 4,050.80 : x
  2. Step 2: Convert to fraction form
    12,815.84/19,223.88 = 4,050.80/x
  3. Step 3: Cross multiply
    12,815.84x = 19,223.88 × 4,050.80
  4. Step 4: Simplify right side
    12,815.84x = 77,872,093.10
  5. Step 5: Solve for x
    x = 77,872,093.10/12,815.84
  6. Step 6: Final answer
    x = 6,076.24

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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.