Home / 18,373.14-27,559.68-12,172.55

Finding the Fourth Proportional to 18,373.14, 27,559.68 and 12,172.55

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Solution

The fourth proportional to 18,373.14, 27,559.68 and 12,172.55 is: 18,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,373.14 : 27,559.68 = 12,172.55 : x
  2. Step 2: Convert to fraction form
    18,373.14/27,559.68 = 12,172.55/x
  3. Step 3: Cross multiply
    18,373.14x = 27,559.68 × 12,172.55
  4. Step 4: Simplify right side
    18,373.14x = 335,471,444.99
  5. Step 5: Solve for x
    x = 335,471,444.99/18,373.14
  6. Step 6: Final answer
    x = 18,258.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.