Home / 11,121.86-16,671.17-3,720.23

Finding the Fourth Proportional to 11,121.86, 16,671.17 and 3,720.23

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Solution

The fourth proportional to 11,121.86, 16,671.17 and 3,720.23 is: 5,576.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.86 : 16,671.17 = 3,720.23 : x
  2. Step 2: Convert to fraction form
    11,121.86/16,671.17 = 3,720.23/x
  3. Step 3: Cross multiply
    11,121.86x = 16,671.17 × 3,720.23
  4. Step 4: Simplify right side
    11,121.86x = 62,020,554.30
  5. Step 5: Solve for x
    x = 62,020,554.30/11,121.86
  6. Step 6: Final answer
    x = 5,576.46

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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.