Home / 11,331.81-16,970.36-6,815.88

Finding the Fourth Proportional to 11,331.81, 16,970.36 and 6,815.88

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Solution

The fourth proportional to 11,331.81, 16,970.36 and 6,815.88 is: 10,207.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.81 : 16,970.36 = 6,815.88 : x
  2. Step 2: Convert to fraction form
    11,331.81/16,970.36 = 6,815.88/x
  3. Step 3: Cross multiply
    11,331.81x = 16,970.36 × 6,815.88
  4. Step 4: Simplify right side
    11,331.81x = 115,667,903.24
  5. Step 5: Solve for x
    x = 115,667,903.24/11,331.81
  6. Step 6: Final answer
    x = 10,207.36

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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.