Home / 18,475.87-27,713.58-12,538.06

Finding the Fourth Proportional to 18,475.87, 27,713.58 and 12,538.06

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Solution

The fourth proportional to 18,475.87, 27,713.58 and 12,538.06 is: 18,806.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,475.87 : 27,713.58 = 12,538.06 : x
  2. Step 2: Convert to fraction form
    18,475.87/27,713.58 = 12,538.06/x
  3. Step 3: Cross multiply
    18,475.87x = 27,713.58 × 12,538.06
  4. Step 4: Simplify right side
    18,475.87x = 347,474,528.85
  5. Step 5: Solve for x
    x = 347,474,528.85/18,475.87
  6. Step 6: Final answer
    x = 18,806.94

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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.