Home / 12,573.90-18,860.94-3,808.80

Finding the Fourth Proportional to 12,573.90, 18,860.94 and 3,808.80

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Solution

The fourth proportional to 12,573.90, 18,860.94 and 3,808.80 is: 5,713.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.90 : 18,860.94 = 3,808.80 : x
  2. Step 2: Convert to fraction form
    12,573.90/18,860.94 = 3,808.80/x
  3. Step 3: Cross multiply
    12,573.90x = 18,860.94 × 3,808.80
  4. Step 4: Simplify right side
    12,573.90x = 71,837,548.27
  5. Step 5: Solve for x
    x = 71,837,548.27/12,573.90
  6. Step 6: Final answer
    x = 5,713.23

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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.