Home / 18,680.99-25,779.71-10,183.28

Finding the Fourth Proportional to 18,680.99, 25,779.71 and 10,183.28

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Solution

The fourth proportional to 18,680.99, 25,779.71 and 10,183.28 is: 14,052.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680.99 : 25,779.71 = 10,183.28 : x
  2. Step 2: Convert to fraction form
    18,680.99/25,779.71 = 10,183.28/x
  3. Step 3: Cross multiply
    18,680.99x = 25,779.71 × 10,183.28
  4. Step 4: Simplify right side
    18,680.99x = 262,521,825.43
  5. Step 5: Solve for x
    x = 262,521,825.43/18,680.99
  6. Step 6: Final answer
    x = 14,052.89

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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.