Home / 18,777.45-25,912.93-10,279.64

Finding the Fourth Proportional to 18,777.45, 25,912.93 and 10,279.64

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Solution

The fourth proportional to 18,777.45, 25,912.93 and 10,279.64 is: 14,185.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777.45 : 25,912.93 = 10,279.64 : x
  2. Step 2: Convert to fraction form
    18,777.45/25,912.93 = 10,279.64/x
  3. Step 3: Cross multiply
    18,777.45x = 25,912.93 × 10,279.64
  4. Step 4: Simplify right side
    18,777.45x = 266,375,617.13
  5. Step 5: Solve for x
    x = 266,375,617.13/18,777.45
  6. Step 6: Final answer
    x = 14,185.93

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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.