Home / 13,923.08-20,882.49-5,155.84

Finding the Fourth Proportional to 13,923.08, 20,882.49 and 5,155.84

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Solution

The fourth proportional to 13,923.08, 20,882.49 and 5,155.84 is: 7,732.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.08 : 20,882.49 = 5,155.84 : x
  2. Step 2: Convert to fraction form
    13,923.08/20,882.49 = 5,155.84/x
  3. Step 3: Cross multiply
    13,923.08x = 20,882.49 × 5,155.84
  4. Step 4: Simplify right side
    13,923.08x = 107,666,777.24
  5. Step 5: Solve for x
    x = 107,666,777.24/13,923.08
  6. Step 6: Final answer
    x = 7,732.97

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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.