Home / 11,160.08-16,742.92-7,879.58

Finding the Fourth Proportional to 11,160.08, 16,742.92 and 7,879.58

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Solution

The fourth proportional to 11,160.08, 16,742.92 and 7,879.58 is: 11,821.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,160.08 : 16,742.92 = 7,879.58 : x
  2. Step 2: Convert to fraction form
    11,160.08/16,742.92 = 7,879.58/x
  3. Step 3: Cross multiply
    11,160.08x = 16,742.92 × 7,879.58
  4. Step 4: Simplify right side
    11,160.08x = 131,927,177.57
  5. Step 5: Solve for x
    x = 131,927,177.57/11,160.08
  6. Step 6: Final answer
    x = 11,821.35

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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.