Home / 10,908.87-16,362.96-3,117.68

Finding the Fourth Proportional to 10,908.87, 16,362.96 and 3,117.68

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Solution

The fourth proportional to 10,908.87, 16,362.96 and 3,117.68 is: 4,676.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,908.87 : 16,362.96 = 3,117.68 : x
  2. Step 2: Convert to fraction form
    10,908.87/16,362.96 = 3,117.68/x
  3. Step 3: Cross multiply
    10,908.87x = 16,362.96 × 3,117.68
  4. Step 4: Simplify right side
    10,908.87x = 51,014,457.54
  5. Step 5: Solve for x
    x = 51,014,457.54/10,908.87
  6. Step 6: Final answer
    x = 4,676.42

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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.