Home / 11,149.84-16,730.21-4,909.06

Finding the Fourth Proportional to 11,149.84, 16,730.21 and 4,909.06

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Solution

The fourth proportional to 11,149.84, 16,730.21 and 4,909.06 is: 7,365.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,149.84 : 16,730.21 = 4,909.06 : x
  2. Step 2: Convert to fraction form
    11,149.84/16,730.21 = 4,909.06/x
  3. Step 3: Cross multiply
    11,149.84x = 16,730.21 × 4,909.06
  4. Step 4: Simplify right side
    11,149.84x = 82,129,604.70
  5. Step 5: Solve for x
    x = 82,129,604.70/11,149.84
  6. Step 6: Final answer
    x = 7,365.99

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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.