Home / 11,180.76-16,772.76-3,390.24

Finding the Fourth Proportional to 11,180.76, 16,772.76 and 3,390.24

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Solution

The fourth proportional to 11,180.76, 16,772.76 and 3,390.24 is: 5,085.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.76 : 16,772.76 = 3,390.24 : x
  2. Step 2: Convert to fraction form
    11,180.76/16,772.76 = 3,390.24/x
  3. Step 3: Cross multiply
    11,180.76x = 16,772.76 × 3,390.24
  4. Step 4: Simplify right side
    11,180.76x = 56,863,681.86
  5. Step 5: Solve for x
    x = 56,863,681.86/11,180.76
  6. Step 6: Final answer
    x = 5,085.85

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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.