Home / 11,911.71-17,854.96-4,006.70

Finding the Fourth Proportional to 11,911.71, 17,854.96 and 4,006.70

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Solution

The fourth proportional to 11,911.71, 17,854.96 and 4,006.70 is: 6,005.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.71 : 17,854.96 = 4,006.70 : x
  2. Step 2: Convert to fraction form
    11,911.71/17,854.96 = 4,006.70/x
  3. Step 3: Cross multiply
    11,911.71x = 17,854.96 × 4,006.70
  4. Step 4: Simplify right side
    11,911.71x = 71,539,468.23
  5. Step 5: Solve for x
    x = 71,539,468.23/11,911.71
  6. Step 6: Final answer
    x = 6,005.81

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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.