Home / 19,279.28-28,918.92-6,808.56

Finding the Fourth Proportional to 19,279.28, 28,918.92 and 6,808.56

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Solution

The fourth proportional to 19,279.28, 28,918.92 and 6,808.56 is: 10,212.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,279.28 : 28,918.92 = 6,808.56 : x
  2. Step 2: Convert to fraction form
    19,279.28/28,918.92 = 6,808.56/x
  3. Step 3: Cross multiply
    19,279.28x = 28,918.92 × 6,808.56
  4. Step 4: Simplify right side
    19,279.28x = 196,896,201.96
  5. Step 5: Solve for x
    x = 196,896,201.96/19,279.28
  6. Step 6: Final answer
    x = 10,212.84

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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.