Home / 11,807.45-16,293.96-6,429.75

Finding the Fourth Proportional to 11,807.45, 16,293.96 and 6,429.75

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Solution

The fourth proportional to 11,807.45, 16,293.96 and 6,429.75 is: 8,872.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,807.45 : 16,293.96 = 6,429.75 : x
  2. Step 2: Convert to fraction form
    11,807.45/16,293.96 = 6,429.75/x
  3. Step 3: Cross multiply
    11,807.45x = 16,293.96 × 6,429.75
  4. Step 4: Simplify right side
    11,807.45x = 104,766,165.69
  5. Step 5: Solve for x
    x = 104,766,165.69/11,807.45
  6. Step 6: Final answer
    x = 8,872.89

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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.