Home / 11,947.55-17,921.75-3,182.49

Finding the Fourth Proportional to 11,947.55, 17,921.75 and 3,182.49

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Solution

The fourth proportional to 11,947.55, 17,921.75 and 3,182.49 is: 4,773.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.55 : 17,921.75 = 3,182.49 : x
  2. Step 2: Convert to fraction form
    11,947.55/17,921.75 = 3,182.49/x
  3. Step 3: Cross multiply
    11,947.55x = 17,921.75 × 3,182.49
  4. Step 4: Simplify right side
    11,947.55x = 57,035,774.25
  5. Step 5: Solve for x
    x = 57,035,774.25/11,947.55
  6. Step 6: Final answer
    x = 4,773.85

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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.