Home / 13,372.32-18,453.54-7,403.84

Finding the Fourth Proportional to 13,372.32, 18,453.54 and 7,403.84

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Solution

The fourth proportional to 13,372.32, 18,453.54 and 7,403.84 is: 10,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.32 : 18,453.54 = 7,403.84 : x
  2. Step 2: Convert to fraction form
    13,372.32/18,453.54 = 7,403.84/x
  3. Step 3: Cross multiply
    13,372.32x = 18,453.54 × 7,403.84
  4. Step 4: Simplify right side
    13,372.32x = 136,627,057.59
  5. Step 5: Solve for x
    x = 136,627,057.59/13,372.32
  6. Step 6: Final answer
    x = 10,217.15

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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.