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Finding the Fourth Proportional to 11,164.72, 16,750.89 and 6,999.70

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Solution

The fourth proportional to 11,164.72, 16,750.89 and 6,999.70 is: 10,501.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,164.72 : 16,750.89 = 6,999.70 : x
  2. Step 2: Convert to fraction form
    11,164.72/16,750.89 = 6,999.70/x
  3. Step 3: Cross multiply
    11,164.72x = 16,750.89 × 6,999.70
  4. Step 4: Simplify right side
    11,164.72x = 117,251,162.86
  5. Step 5: Solve for x
    x = 117,251,162.86/11,164.72
  6. Step 6: Final answer
    x = 10,501.94

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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.