Home / 13,829.38-18,931.86-13,730.56

Finding the Fourth Proportional to 13,829.38, 18,931.86 and 13,730.56

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Solution

The fourth proportional to 13,829.38, 18,931.86 and 13,730.56 is: 18,796.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.38 : 18,931.86 = 13,730.56 : x
  2. Step 2: Convert to fraction form
    13,829.38/18,931.86 = 13,730.56/x
  3. Step 3: Cross multiply
    13,829.38x = 18,931.86 × 13,730.56
  4. Step 4: Simplify right side
    13,829.38x = 259,945,039.64
  5. Step 5: Solve for x
    x = 259,945,039.64/13,829.38
  6. Step 6: Final answer
    x = 18,796.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.