Home / 12,165.24-18,249.84-4,672.20

Finding the Fourth Proportional to 12,165.24, 18,249.84 and 4,672.20

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Solution

The fourth proportional to 12,165.24, 18,249.84 and 4,672.20 is: 7,009.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.24 : 18,249.84 = 4,672.20 : x
  2. Step 2: Convert to fraction form
    12,165.24/18,249.84 = 4,672.20/x
  3. Step 3: Cross multiply
    12,165.24x = 18,249.84 × 4,672.20
  4. Step 4: Simplify right side
    12,165.24x = 85,266,902.45
  5. Step 5: Solve for x
    x = 85,266,902.45/12,165.24
  6. Step 6: Final answer
    x = 7,009.06

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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.