Home / 11,812.14-16,299.90-6,506.64

Finding the Fourth Proportional to 11,812.14, 16,299.90 and 6,506.64

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Solution

The fourth proportional to 11,812.14, 16,299.90 and 6,506.64 is: 8,978.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,812.14 : 16,299.90 = 6,506.64 : x
  2. Step 2: Convert to fraction form
    11,812.14/16,299.90 = 6,506.64/x
  3. Step 3: Cross multiply
    11,812.14x = 16,299.90 × 6,506.64
  4. Step 4: Simplify right side
    11,812.14x = 106,057,581.34
  5. Step 5: Solve for x
    x = 106,057,581.34/11,812.14
  6. Step 6: Final answer
    x = 8,978.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.