Home / 12,165.98-18,241.36-5,583.72

Finding the Fourth Proportional to 12,165.98, 18,241.36 and 5,583.72

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Solution

The fourth proportional to 12,165.98, 18,241.36 and 5,583.72 is: 8,372.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.98 : 18,241.36 = 5,583.72 : x
  2. Step 2: Convert to fraction form
    12,165.98/18,241.36 = 5,583.72/x
  3. Step 3: Cross multiply
    12,165.98x = 18,241.36 × 5,583.72
  4. Step 4: Simplify right side
    12,165.98x = 101,854,646.66
  5. Step 5: Solve for x
    x = 101,854,646.66/12,165.98
  6. Step 6: Final answer
    x = 8,372.09

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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.