Home / 13,340.45-18,409.83-7,372.50

Finding the Fourth Proportional to 13,340.45, 18,409.83 and 7,372.50

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Solution

The fourth proportional to 13,340.45, 18,409.83 and 7,372.50 is: 10,174.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.45 : 18,409.83 = 7,372.50 : x
  2. Step 2: Convert to fraction form
    13,340.45/18,409.83 = 7,372.50/x
  3. Step 3: Cross multiply
    13,340.45x = 18,409.83 × 7,372.50
  4. Step 4: Simplify right side
    13,340.45x = 135,726,471.68
  5. Step 5: Solve for x
    x = 135,726,471.68/13,340.45
  6. Step 6: Final answer
    x = 10,174.06

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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.