Home / 10,994.82-15,176.21-8,771.99

Finding the Fourth Proportional to 10,994.82, 15,176.21 and 8,771.99

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Solution

The fourth proportional to 10,994.82, 15,176.21 and 8,771.99 is: 12,108.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,994.82 : 15,176.21 = 8,771.99 : x
  2. Step 2: Convert to fraction form
    10,994.82/15,176.21 = 8,771.99/x
  3. Step 3: Cross multiply
    10,994.82x = 15,176.21 × 8,771.99
  4. Step 4: Simplify right side
    10,994.82x = 133,125,442.62
  5. Step 5: Solve for x
    x = 133,125,442.62/10,994.82
  6. Step 6: Final answer
    x = 12,108.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.