Home / 18,688.52-25,791.96-13,964.60

Finding the Fourth Proportional to 18,688.52, 25,791.96 and 13,964.60

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Solution

The fourth proportional to 18,688.52, 25,791.96 and 13,964.60 is: 19,272.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.52 : 25,791.96 = 13,964.60 : x
  2. Step 2: Convert to fraction form
    18,688.52/25,791.96 = 13,964.60/x
  3. Step 3: Cross multiply
    18,688.52x = 25,791.96 × 13,964.60
  4. Step 4: Simplify right side
    18,688.52x = 360,174,404.62
  5. Step 5: Solve for x
    x = 360,174,404.62/18,688.52
  6. Step 6: Final answer
    x = 19,272.49

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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.