Home / 13,329.43-18,394.64-7,361.35

Finding the Fourth Proportional to 13,329.43, 18,394.64 and 7,361.35

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Solution

The fourth proportional to 13,329.43, 18,394.64 and 7,361.35 is: 10,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.43 : 18,394.64 = 7,361.35 : x
  2. Step 2: Convert to fraction form
    13,329.43/18,394.64 = 7,361.35/x
  3. Step 3: Cross multiply
    13,329.43x = 18,394.64 × 7,361.35
  4. Step 4: Simplify right side
    13,329.43x = 135,409,383.16
  5. Step 5: Solve for x
    x = 135,409,383.16/13,329.43
  6. Step 6: Final answer
    x = 10,158.68

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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.