Home / 12,135.88-18,195.78-4,741.04

Finding the Fourth Proportional to 12,135.88, 18,195.78 and 4,741.04

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Solution

The fourth proportional to 12,135.88, 18,195.78 and 4,741.04 is: 7,108.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.88 : 18,195.78 = 4,741.04 : x
  2. Step 2: Convert to fraction form
    12,135.88/18,195.78 = 4,741.04/x
  3. Step 3: Cross multiply
    12,135.88x = 18,195.78 × 4,741.04
  4. Step 4: Simplify right side
    12,135.88x = 86,266,920.81
  5. Step 5: Solve for x
    x = 86,266,920.81/12,135.88
  6. Step 6: Final answer
    x = 7,108.42

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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.