Home / 10,939.90-15,096.71-6,160.09

Finding the Fourth Proportional to 10,939.90, 15,096.71 and 6,160.09

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Solution

The fourth proportional to 10,939.90, 15,096.71 and 6,160.09 is: 8,500.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.90 : 15,096.71 = 6,160.09 : x
  2. Step 2: Convert to fraction form
    10,939.90/15,096.71 = 6,160.09/x
  3. Step 3: Cross multiply
    10,939.90x = 15,096.71 × 6,160.09
  4. Step 4: Simplify right side
    10,939.90x = 92,997,092.30
  5. Step 5: Solve for x
    x = 92,997,092.30/10,939.90
  6. Step 6: Final answer
    x = 8,500.73

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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.