Home / 13,676.67-20,510.96-3,813.57

Finding the Fourth Proportional to 13,676.67, 20,510.96 and 3,813.57

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Solution

The fourth proportional to 13,676.67, 20,510.96 and 3,813.57 is: 5,719.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.67 : 20,510.96 = 3,813.57 : x
  2. Step 2: Convert to fraction form
    13,676.67/20,510.96 = 3,813.57/x
  3. Step 3: Cross multiply
    13,676.67x = 20,510.96 × 3,813.57
  4. Step 4: Simplify right side
    13,676.67x = 78,219,962.66
  5. Step 5: Solve for x
    x = 78,219,962.66/13,676.67
  6. Step 6: Final answer
    x = 5,719.23

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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.