Home / 13,945.56-19,245.91-8,641.41

Finding the Fourth Proportional to 13,945.56, 19,245.91 and 8,641.41

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Solution

The fourth proportional to 13,945.56, 19,245.91 and 8,641.41 is: 11,925.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.56 : 19,245.91 = 8,641.41 : x
  2. Step 2: Convert to fraction form
    13,945.56/19,245.91 = 8,641.41/x
  3. Step 3: Cross multiply
    13,945.56x = 19,245.91 × 8,641.41
  4. Step 4: Simplify right side
    13,945.56x = 166,311,799.13
  5. Step 5: Solve for x
    x = 166,311,799.13/13,945.56
  6. Step 6: Final answer
    x = 11,925.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.