Home / 12,489.08-17,236.65-7,183.76

Finding the Fourth Proportional to 12,489.08, 17,236.65 and 7,183.76

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Solution

The fourth proportional to 12,489.08, 17,236.65 and 7,183.76 is: 9,914.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,489.08 : 17,236.65 = 7,183.76 : x
  2. Step 2: Convert to fraction form
    12,489.08/17,236.65 = 7,183.76/x
  3. Step 3: Cross multiply
    12,489.08x = 17,236.65 × 7,183.76
  4. Step 4: Simplify right side
    12,489.08x = 123,823,956.80
  5. Step 5: Solve for x
    x = 123,823,956.80/12,489.08
  6. Step 6: Final answer
    x = 9,914.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.