Home / 11,114.70-16,685.09-8,776.28

Finding the Fourth Proportional to 11,114.70, 16,685.09 and 8,776.28

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Solution

The fourth proportional to 11,114.70, 16,685.09 and 8,776.28 is: 13,174.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.70 : 16,685.09 = 8,776.28 : x
  2. Step 2: Convert to fraction form
    11,114.70/16,685.09 = 8,776.28/x
  3. Step 3: Cross multiply
    11,114.70x = 16,685.09 × 8,776.28
  4. Step 4: Simplify right side
    11,114.70x = 146,433,021.67
  5. Step 5: Solve for x
    x = 146,433,021.67/11,114.70
  6. Step 6: Final answer
    x = 13,174.72

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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.