Home / 12,589.09-18,886.39-3,824.69

Finding the Fourth Proportional to 12,589.09, 18,886.39 and 3,824.69

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Solution

The fourth proportional to 12,589.09, 18,886.39 and 3,824.69 is: 5,737.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589.09 : 18,886.39 = 3,824.69 : x
  2. Step 2: Convert to fraction form
    12,589.09/18,886.39 = 3,824.69/x
  3. Step 3: Cross multiply
    12,589.09x = 18,886.39 × 3,824.69
  4. Step 4: Simplify right side
    12,589.09x = 72,234,482.98
  5. Step 5: Solve for x
    x = 72,234,482.98/12,589.09
  6. Step 6: Final answer
    x = 5,737.86

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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.