Home / 12,631.48-18,947.25-3,866.36

Finding the Fourth Proportional to 12,631.48, 18,947.25 and 3,866.36

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Solution

The fourth proportional to 12,631.48, 18,947.25 and 3,866.36 is: 5,799.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.48 : 18,947.25 = 3,866.36 : x
  2. Step 2: Convert to fraction form
    12,631.48/18,947.25 = 3,866.36/x
  3. Step 3: Cross multiply
    12,631.48x = 18,947.25 × 3,866.36
  4. Step 4: Simplify right side
    12,631.48x = 73,256,794.77
  5. Step 5: Solve for x
    x = 73,256,794.77/12,631.48
  6. Step 6: Final answer
    x = 5,799.54

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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.