Home / 13,589.39-18,743.87-13,132.18

Finding the Fourth Proportional to 13,589.39, 18,743.87 and 13,132.18

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Solution

The fourth proportional to 13,589.39, 18,743.87 and 13,132.18 is: 18,113.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.39 : 18,743.87 = 13,132.18 : x
  2. Step 2: Convert to fraction form
    13,589.39/18,743.87 = 13,132.18/x
  3. Step 3: Cross multiply
    13,589.39x = 18,743.87 × 13,132.18
  4. Step 4: Simplify right side
    13,589.39x = 246,147,825.56
  5. Step 5: Solve for x
    x = 246,147,825.56/13,589.39
  6. Step 6: Final answer
    x = 18,113.24

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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.