Home / 11,145.20-16,706.98-4,123.24

Finding the Fourth Proportional to 11,145.20, 16,706.98 and 4,123.24

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Solution

The fourth proportional to 11,145.20, 16,706.98 and 4,123.24 is: 6,180.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.20 : 16,706.98 = 4,123.24 : x
  2. Step 2: Convert to fraction form
    11,145.20/16,706.98 = 4,123.24/x
  3. Step 3: Cross multiply
    11,145.20x = 16,706.98 × 4,123.24
  4. Step 4: Simplify right side
    11,145.20x = 68,886,888.22
  5. Step 5: Solve for x
    x = 68,886,888.22/11,145.20
  6. Step 6: Final answer
    x = 6,180.86

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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.