Home / 13,945.81-19,245.21-7,572.37

Finding the Fourth Proportional to 13,945.81, 19,245.21 and 7,572.37

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Solution

The fourth proportional to 13,945.81, 19,245.21 and 7,572.37 is: 10,449.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.81 : 19,245.21 = 7,572.37 : x
  2. Step 2: Convert to fraction form
    13,945.81/19,245.21 = 7,572.37/x
  3. Step 3: Cross multiply
    13,945.81x = 19,245.21 × 7,572.37
  4. Step 4: Simplify right side
    13,945.81x = 145,731,754.62
  5. Step 5: Solve for x
    x = 145,731,754.62/13,945.81
  6. Step 6: Final answer
    x = 10,449.86

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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.