Home / 10,101.38-13,939.90-5,910.44

Finding the Fourth Proportional to 10,101.38, 13,939.90 and 5,910.44

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Solution

The fourth proportional to 10,101.38, 13,939.90 and 5,910.44 is: 8,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,101.38 : 13,939.90 = 5,910.44 : x
  2. Step 2: Convert to fraction form
    10,101.38/13,939.90 = 5,910.44/x
  3. Step 3: Cross multiply
    10,101.38x = 13,939.90 × 5,910.44
  4. Step 4: Simplify right side
    10,101.38x = 82,390,858.08
  5. Step 5: Solve for x
    x = 82,390,858.08/10,101.38
  6. Step 6: Final answer
    x = 8,156.40

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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.