Home / 18,115.76-24,988.25-13,087.37

Finding the Fourth Proportional to 18,115.76, 24,988.25 and 13,087.37

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Solution

The fourth proportional to 18,115.76, 24,988.25 and 13,087.37 is: 18,052.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.76 : 24,988.25 = 13,087.37 : x
  2. Step 2: Convert to fraction form
    18,115.76/24,988.25 = 13,087.37/x
  3. Step 3: Cross multiply
    18,115.76x = 24,988.25 × 13,087.37
  4. Step 4: Simplify right side
    18,115.76x = 327,030,376.73
  5. Step 5: Solve for x
    x = 327,030,376.73/18,115.76
  6. Step 6: Final answer
    x = 18,052.26

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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.