Home / 10,969.08-16,453.92-3,178.20

Finding the Fourth Proportional to 10,969.08, 16,453.92 and 3,178.20

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Solution

The fourth proportional to 10,969.08, 16,453.92 and 3,178.20 is: 4,767.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,969.08 : 16,453.92 = 3,178.20 : x
  2. Step 2: Convert to fraction form
    10,969.08/16,453.92 = 3,178.20/x
  3. Step 3: Cross multiply
    10,969.08x = 16,453.92 × 3,178.20
  4. Step 4: Simplify right side
    10,969.08x = 52,293,848.54
  5. Step 5: Solve for x
    x = 52,293,848.54/10,969.08
  6. Step 6: Final answer
    x = 4,767.39

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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.