Home / 18,427.21-27,651.52-7,752.78

Finding the Fourth Proportional to 18,427.21, 27,651.52 and 7,752.78

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Solution

The fourth proportional to 18,427.21, 27,651.52 and 7,752.78 is: 11,633.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.21 : 27,651.52 = 7,752.78 : x
  2. Step 2: Convert to fraction form
    18,427.21/27,651.52 = 7,752.78/x
  3. Step 3: Cross multiply
    18,427.21x = 27,651.52 × 7,752.78
  4. Step 4: Simplify right side
    18,427.21x = 214,376,112.46
  5. Step 5: Solve for x
    x = 214,376,112.46/18,427.21
  6. Step 6: Final answer
    x = 11,633.67

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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.