Home / 18,129.96-25,022.34-10,682.28

Finding the Fourth Proportional to 18,129.96, 25,022.34 and 10,682.28

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Solution

The fourth proportional to 18,129.96, 25,022.34 and 10,682.28 is: 14,743.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.96 : 25,022.34 = 10,682.28 : x
  2. Step 2: Convert to fraction form
    18,129.96/25,022.34 = 10,682.28/x
  3. Step 3: Cross multiply
    18,129.96x = 25,022.34 × 10,682.28
  4. Step 4: Simplify right side
    18,129.96x = 267,295,642.14
  5. Step 5: Solve for x
    x = 267,295,642.14/18,129.96
  6. Step 6: Final answer
    x = 14,743.31

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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.