Home / 18,527.56-25,568.36-13,231.40

Finding the Fourth Proportional to 18,527.56, 25,568.36 and 13,231.40

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Solution

The fourth proportional to 18,527.56, 25,568.36 and 13,231.40 is: 18,259.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,527.56 : 25,568.36 = 13,231.40 : x
  2. Step 2: Convert to fraction form
    18,527.56/25,568.36 = 13,231.40/x
  3. Step 3: Cross multiply
    18,527.56x = 25,568.36 × 13,231.40
  4. Step 4: Simplify right side
    18,527.56x = 338,305,198.50
  5. Step 5: Solve for x
    x = 338,305,198.50/18,527.56
  6. Step 6: Final answer
    x = 18,259.57

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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.