Home / 18,318.06-27,478.44-6,631.38

Finding the Fourth Proportional to 18,318.06, 27,478.44 and 6,631.38

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Solution

The fourth proportional to 18,318.06, 27,478.44 and 6,631.38 is: 9,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.06 : 27,478.44 = 6,631.38 : x
  2. Step 2: Convert to fraction form
    18,318.06/27,478.44 = 6,631.38/x
  3. Step 3: Cross multiply
    18,318.06x = 27,478.44 × 6,631.38
  4. Step 4: Simplify right side
    18,318.06x = 182,219,977.45
  5. Step 5: Solve for x
    x = 182,219,977.45/18,318.06
  6. Step 6: Final answer
    x = 9,947.56

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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.