Home / 18,776.41-25,911.05-10,278.31

Finding the Fourth Proportional to 18,776.41, 25,911.05 and 10,278.31

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Solution

The fourth proportional to 18,776.41, 25,911.05 and 10,278.31 is: 14,183.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776.41 : 25,911.05 = 10,278.31 : x
  2. Step 2: Convert to fraction form
    18,776.41/25,911.05 = 10,278.31/x
  3. Step 3: Cross multiply
    18,776.41x = 25,911.05 × 10,278.31
  4. Step 4: Simplify right side
    18,776.41x = 266,321,752.93
  5. Step 5: Solve for x
    x = 266,321,752.93/18,776.41
  6. Step 6: Final answer
    x = 14,183.85

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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.