Home / 12,105.62-18,151.40-4,701.42

Finding the Fourth Proportional to 12,105.62, 18,151.40 and 4,701.42

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Solution

The fourth proportional to 12,105.62, 18,151.40 and 4,701.42 is: 7,049.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,105.62 : 18,151.40 = 4,701.42 : x
  2. Step 2: Convert to fraction form
    12,105.62/18,151.40 = 4,701.42/x
  3. Step 3: Cross multiply
    12,105.62x = 18,151.40 × 4,701.42
  4. Step 4: Simplify right side
    12,105.62x = 85,337,354.99
  5. Step 5: Solve for x
    x = 85,337,354.99/12,105.62
  6. Step 6: Final answer
    x = 7,049.40

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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.