Home / 10,331.36-15,497.68-3,405.92

Finding the Fourth Proportional to 10,331.36, 15,497.68 and 3,405.92

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Solution

The fourth proportional to 10,331.36, 15,497.68 and 3,405.92 is: 5,109.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.36 : 15,497.68 = 3,405.92 : x
  2. Step 2: Convert to fraction form
    10,331.36/15,497.68 = 3,405.92/x
  3. Step 3: Cross multiply
    10,331.36x = 15,497.68 × 3,405.92
  4. Step 4: Simplify right side
    10,331.36x = 52,783,858.27
  5. Step 5: Solve for x
    x = 52,783,858.27/10,331.36
  6. Step 6: Final answer
    x = 5,109.09

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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.