Home / 11,124.83-16,685.75-3,120.19

Finding the Fourth Proportional to 11,124.83, 16,685.75 and 3,120.19

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Solution

The fourth proportional to 11,124.83, 16,685.75 and 3,120.19 is: 4,679.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,124.83 : 16,685.75 = 3,120.19 : x
  2. Step 2: Convert to fraction form
    11,124.83/16,685.75 = 3,120.19/x
  3. Step 3: Cross multiply
    11,124.83x = 16,685.75 × 3,120.19
  4. Step 4: Simplify right side
    11,124.83x = 52,062,676.38
  5. Step 5: Solve for x
    x = 52,062,676.38/11,124.83
  6. Step 6: Final answer
    x = 4,679.86

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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.