Home / 13,329.63-18,394.83-7,361.30

Finding the Fourth Proportional to 13,329.63, 18,394.83 and 7,361.30

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Solution

The fourth proportional to 13,329.63, 18,394.83 and 7,361.30 is: 10,158.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.63 : 18,394.83 = 7,361.30 : x
  2. Step 2: Convert to fraction form
    13,329.63/18,394.83 = 7,361.30/x
  3. Step 3: Cross multiply
    13,329.63x = 18,394.83 × 7,361.30
  4. Step 4: Simplify right side
    13,329.63x = 135,409,908.07
  5. Step 5: Solve for x
    x = 135,409,908.07/13,329.63
  6. Step 6: Final answer
    x = 10,158.56

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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.