Home / 18,631.68-27,947.12-8,765.49

Finding the Fourth Proportional to 18,631.68, 27,947.12 and 8,765.49

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Solution

The fourth proportional to 18,631.68, 27,947.12 and 8,765.49 is: 13,148.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.68 : 27,947.12 = 8,765.49 : x
  2. Step 2: Convert to fraction form
    18,631.68/27,947.12 = 8,765.49/x
  3. Step 3: Cross multiply
    18,631.68x = 27,947.12 × 8,765.49
  4. Step 4: Simplify right side
    18,631.68x = 244,970,157.06
  5. Step 5: Solve for x
    x = 244,970,157.06/18,631.68
  6. Step 6: Final answer
    x = 13,148.04

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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.