Home / 18,923.94-28,390.08-5,777.34

Finding the Fourth Proportional to 18,923.94, 28,390.08 and 5,777.34

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Solution

The fourth proportional to 18,923.94, 28,390.08 and 5,777.34 is: 8,667.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923.94 : 28,390.08 = 5,777.34 : x
  2. Step 2: Convert to fraction form
    18,923.94/28,390.08 = 5,777.34/x
  3. Step 3: Cross multiply
    18,923.94x = 28,390.08 × 5,777.34
  4. Step 4: Simplify right side
    18,923.94x = 164,019,144.79
  5. Step 5: Solve for x
    x = 164,019,144.79/18,923.94
  6. Step 6: Final answer
    x = 8,667.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.