Home / 10,954.10-16,431.15-10,109.30

Finding the Fourth Proportional to 10,954.10, 16,431.15 and 10,109.30

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Solution

The fourth proportional to 10,954.10, 16,431.15 and 10,109.30 is: 15,163.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,954.10 : 16,431.15 = 10,109.30 : x
  2. Step 2: Convert to fraction form
    10,954.10/16,431.15 = 10,109.30/x
  3. Step 3: Cross multiply
    10,954.10x = 16,431.15 × 10,109.30
  4. Step 4: Simplify right side
    10,954.10x = 166,107,424.70
  5. Step 5: Solve for x
    x = 166,107,424.70/10,954.10
  6. Step 6: Final answer
    x = 15,163.95

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Double scale
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Similar ratio
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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.