Home / 12,625.28-18,933.75-4,189.84

Finding the Fourth Proportional to 12,625.28, 18,933.75 and 4,189.84

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Solution

The fourth proportional to 12,625.28, 18,933.75 and 4,189.84 is: 6,283.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.28 : 18,933.75 = 4,189.84 : x
  2. Step 2: Convert to fraction form
    12,625.28/18,933.75 = 4,189.84/x
  3. Step 3: Cross multiply
    12,625.28x = 18,933.75 × 4,189.84
  4. Step 4: Simplify right side
    12,625.28x = 79,329,335.77
  5. Step 5: Solve for x
    x = 79,329,335.77/12,625.28
  6. Step 6: Final answer
    x = 6,283.37

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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.