Home / 13,340.94-18,409.58-7,372.56

Finding the Fourth Proportional to 13,340.94, 18,409.58 and 7,372.56

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Solution

The fourth proportional to 13,340.94, 18,409.58 and 7,372.56 is: 10,173.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.94 : 18,409.58 = 7,372.56 : x
  2. Step 2: Convert to fraction form
    13,340.94/18,409.58 = 7,372.56/x
  3. Step 3: Cross multiply
    13,340.94x = 18,409.58 × 7,372.56
  4. Step 4: Simplify right side
    13,340.94x = 135,725,733.12
  5. Step 5: Solve for x
    x = 135,725,733.12/13,340.94
  6. Step 6: Final answer
    x = 10,173.63

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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.