Home / 11,739.81-16,201.05-6,434.73

Finding the Fourth Proportional to 11,739.81, 16,201.05 and 6,434.73

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Solution

The fourth proportional to 11,739.81, 16,201.05 and 6,434.73 is: 8,879.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,739.81 : 16,201.05 = 6,434.73 : x
  2. Step 2: Convert to fraction form
    11,739.81/16,201.05 = 6,434.73/x
  3. Step 3: Cross multiply
    11,739.81x = 16,201.05 × 6,434.73
  4. Step 4: Simplify right side
    11,739.81x = 104,249,382.47
  5. Step 5: Solve for x
    x = 104,249,382.47/11,739.81
  6. Step 6: Final answer
    x = 8,879.99

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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.