Home / 8,416.14-12,628.82-3,154.79

Finding the Fourth Proportional to 8,416.14, 12,628.82 and 3,154.79

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Solution

The fourth proportional to 8,416.14, 12,628.82 and 3,154.79 is: 4,733.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.14 : 12,628.82 = 3,154.79 : x
  2. Step 2: Convert to fraction form
    8,416.14/12,628.82 = 3,154.79/x
  3. Step 3: Cross multiply
    8,416.14x = 12,628.82 × 3,154.79
  4. Step 4: Simplify right side
    8,416.14x = 39,841,196.13
  5. Step 5: Solve for x
    x = 39,841,196.13/8,416.14
  6. Step 6: Final answer
    x = 4,733.90

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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.