Home / 13,873.42-19,128.96-11,212.60

Finding the Fourth Proportional to 13,873.42, 19,128.96 and 11,212.60

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Solution

The fourth proportional to 13,873.42, 19,128.96 and 11,212.60 is: 15,460.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873.42 : 19,128.96 = 11,212.60 : x
  2. Step 2: Convert to fraction form
    13,873.42/19,128.96 = 11,212.60/x
  3. Step 3: Cross multiply
    13,873.42x = 19,128.96 × 11,212.60
  4. Step 4: Simplify right side
    13,873.42x = 214,485,376.90
  5. Step 5: Solve for x
    x = 214,485,376.90/13,873.42
  6. Step 6: Final answer
    x = 15,460.17

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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.