Home / 12,672.45-19,008.69-3,907.29

Finding the Fourth Proportional to 12,672.45, 19,008.69 and 3,907.29

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Solution

The fourth proportional to 12,672.45, 19,008.69 and 3,907.29 is: 5,860.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.45 : 19,008.69 = 3,907.29 : x
  2. Step 2: Convert to fraction form
    12,672.45/19,008.69 = 3,907.29/x
  3. Step 3: Cross multiply
    12,672.45x = 19,008.69 × 3,907.29
  4. Step 4: Simplify right side
    12,672.45x = 74,272,464.35
  5. Step 5: Solve for x
    x = 74,272,464.35/12,672.45
  6. Step 6: Final answer
    x = 5,860.94

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1.5x scale

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.