Home / 13,676.22-20,506.13-6,271.40

Finding the Fourth Proportional to 13,676.22, 20,506.13 and 6,271.40

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Solution

The fourth proportional to 13,676.22, 20,506.13 and 6,271.40 is: 9,403.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.22 : 20,506.13 = 6,271.40 : x
  2. Step 2: Convert to fraction form
    13,676.22/20,506.13 = 6,271.40/x
  3. Step 3: Cross multiply
    13,676.22x = 20,506.13 × 6,271.40
  4. Step 4: Simplify right side
    13,676.22x = 128,602,163.59
  5. Step 5: Solve for x
    x = 128,602,163.59/13,676.22
  6. Step 6: Final answer
    x = 9,403.34

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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.