Home / 12,078.09-16,659.33-11,671.67

Finding the Fourth Proportional to 12,078.09, 16,659.33 and 11,671.67

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Solution

The fourth proportional to 12,078.09, 16,659.33 and 11,671.67 is: 16,098.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078.09 : 16,659.33 = 11,671.67 : x
  2. Step 2: Convert to fraction form
    12,078.09/16,659.33 = 11,671.67/x
  3. Step 3: Cross multiply
    12,078.09x = 16,659.33 × 11,671.67
  4. Step 4: Simplify right side
    12,078.09x = 194,442,060.53
  5. Step 5: Solve for x
    x = 194,442,060.53/12,078.09
  6. Step 6: Final answer
    x = 16,098.75

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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.