Home / 10,971.05-16,458.19-3,178.85

Finding the Fourth Proportional to 10,971.05, 16,458.19 and 3,178.85

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Solution

The fourth proportional to 10,971.05, 16,458.19 and 3,178.85 is: 4,768.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.05 : 16,458.19 = 3,178.85 : x
  2. Step 2: Convert to fraction form
    10,971.05/16,458.19 = 3,178.85/x
  3. Step 3: Cross multiply
    10,971.05x = 16,458.19 × 3,178.85
  4. Step 4: Simplify right side
    10,971.05x = 52,318,027.04
  5. Step 5: Solve for x
    x = 52,318,027.04/10,971.05
  6. Step 6: Final answer
    x = 4,768.74

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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.