Home / 18,314.05-25,273.35-9,930.55

Finding the Fourth Proportional to 18,314.05, 25,273.35 and 9,930.55

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Solution

The fourth proportional to 18,314.05, 25,273.35 and 9,930.55 is: 13,704.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,314.05 : 25,273.35 = 9,930.55 : x
  2. Step 2: Convert to fraction form
    18,314.05/25,273.35 = 9,930.55/x
  3. Step 3: Cross multiply
    18,314.05x = 25,273.35 × 9,930.55
  4. Step 4: Simplify right side
    18,314.05x = 250,978,265.84
  5. Step 5: Solve for x
    x = 250,978,265.84/18,314.05
  6. Step 6: Final answer
    x = 13,704.14

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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.