Home / 12,624.28-18,939.15-3,858.98

Finding the Fourth Proportional to 12,624.28, 18,939.15 and 3,858.98

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Solution

The fourth proportional to 12,624.28, 18,939.15 and 3,858.98 is: 5,789.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624.28 : 18,939.15 = 3,858.98 : x
  2. Step 2: Convert to fraction form
    12,624.28/18,939.15 = 3,858.98/x
  3. Step 3: Cross multiply
    12,624.28x = 18,939.15 × 3,858.98
  4. Step 4: Simplify right side
    12,624.28x = 73,085,706.37
  5. Step 5: Solve for x
    x = 73,085,706.37/12,624.28
  6. Step 6: Final answer
    x = 5,789.30

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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.