Home / 13,741.80-18,963.72-7,454.18

Finding the Fourth Proportional to 13,741.80, 18,963.72 and 7,454.18

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Solution

The fourth proportional to 13,741.80, 18,963.72 and 7,454.18 is: 10,286.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,741.80 : 18,963.72 = 7,454.18 : x
  2. Step 2: Convert to fraction form
    13,741.80/18,963.72 = 7,454.18/x
  3. Step 3: Cross multiply
    13,741.80x = 18,963.72 × 7,454.18
  4. Step 4: Simplify right side
    13,741.80x = 141,358,923.09
  5. Step 5: Solve for x
    x = 141,358,923.09/13,741.80
  6. Step 6: Final answer
    x = 10,286.78

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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.