Home / 11,090.34-16,638.75-4,165.38

Finding the Fourth Proportional to 11,090.34, 16,638.75 and 4,165.38

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Solution

The fourth proportional to 11,090.34, 16,638.75 and 4,165.38 is: 6,249.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,090.34 : 16,638.75 = 4,165.38 : x
  2. Step 2: Convert to fraction form
    11,090.34/16,638.75 = 4,165.38/x
  3. Step 3: Cross multiply
    11,090.34x = 16,638.75 × 4,165.38
  4. Step 4: Simplify right side
    11,090.34x = 69,306,633.28
  5. Step 5: Solve for x
    x = 69,306,633.28/11,090.34
  6. Step 6: Final answer
    x = 6,249.28

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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.