Home / 18,777.66-25,912.76-10,279.56

Finding the Fourth Proportional to 18,777.66, 25,912.76 and 10,279.56

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Solution

The fourth proportional to 18,777.66, 25,912.76 and 10,279.56 is: 14,185.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777.66 : 25,912.76 = 10,279.56 : x
  2. Step 2: Convert to fraction form
    18,777.66/25,912.76 = 10,279.56/x
  3. Step 3: Cross multiply
    18,777.66x = 25,912.76 × 10,279.56
  4. Step 4: Simplify right side
    18,777.66x = 266,371,771.19
  5. Step 5: Solve for x
    x = 266,371,771.19/18,777.66
  6. Step 6: Final answer
    x = 14,185.57

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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.