Home / 12,119.04-16,723.96-6,813.76

Finding the Fourth Proportional to 12,119.04, 16,723.96 and 6,813.76

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Solution

The fourth proportional to 12,119.04, 16,723.96 and 6,813.76 is: 9,402.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.04 : 16,723.96 = 6,813.76 : x
  2. Step 2: Convert to fraction form
    12,119.04/16,723.96 = 6,813.76/x
  3. Step 3: Cross multiply
    12,119.04x = 16,723.96 × 6,813.76
  4. Step 4: Simplify right side
    12,119.04x = 113,953,049.69
  5. Step 5: Solve for x
    x = 113,953,049.69/12,119.04
  6. Step 6: Final answer
    x = 9,402.81

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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.