Home / 12,631.75-18,947.62-3,865.52

Finding the Fourth Proportional to 12,631.75, 18,947.62 and 3,865.52

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Solution

The fourth proportional to 12,631.75, 18,947.62 and 3,865.52 is: 5,798.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.75 : 18,947.62 = 3,865.52 : x
  2. Step 2: Convert to fraction form
    12,631.75/18,947.62 = 3,865.52/x
  3. Step 3: Cross multiply
    12,631.75x = 18,947.62 × 3,865.52
  4. Step 4: Simplify right side
    12,631.75x = 73,242,456.26
  5. Step 5: Solve for x
    x = 73,242,456.26/12,631.75
  6. Step 6: Final answer
    x = 5,798.28

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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.