Home / 18,631.94-27,947.48-8,765.74

Finding the Fourth Proportional to 18,631.94, 27,947.48 and 8,765.74

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Solution

The fourth proportional to 18,631.94, 27,947.48 and 8,765.74 is: 13,148.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.94 : 27,947.48 = 8,765.74 : x
  2. Step 2: Convert to fraction form
    18,631.94/27,947.48 = 8,765.74/x
  3. Step 3: Cross multiply
    18,631.94x = 27,947.48 × 8,765.74
  4. Step 4: Simplify right side
    18,631.94x = 244,980,343.34
  5. Step 5: Solve for x
    x = 244,980,343.34/18,631.94
  6. Step 6: Final answer
    x = 13,148.41

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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.