Home / 12,156.42-18,241.68-6,610.32

Finding the Fourth Proportional to 12,156.42, 18,241.68 and 6,610.32

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Solution

The fourth proportional to 12,156.42, 18,241.68 and 6,610.32 is: 9,919.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.42 : 18,241.68 = 6,610.32 : x
  2. Step 2: Convert to fraction form
    12,156.42/18,241.68 = 6,610.32/x
  3. Step 3: Cross multiply
    12,156.42x = 18,241.68 × 6,610.32
  4. Step 4: Simplify right side
    12,156.42x = 120,583,342.14
  5. Step 5: Solve for x
    x = 120,583,342.14/12,156.42
  6. Step 6: Final answer
    x = 9,919.31

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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.