Home / 12,082.76-18,124.10-3,317.68

Finding the Fourth Proportional to 12,082.76, 18,124.10 and 3,317.68

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Solution

The fourth proportional to 12,082.76, 18,124.10 and 3,317.68 is: 4,976.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,082.76 : 18,124.10 = 3,317.68 : x
  2. Step 2: Convert to fraction form
    12,082.76/18,124.10 = 3,317.68/x
  3. Step 3: Cross multiply
    12,082.76x = 18,124.10 × 3,317.68
  4. Step 4: Simplify right side
    12,082.76x = 60,129,964.09
  5. Step 5: Solve for x
    x = 60,129,964.09/12,082.76
  6. Step 6: Final answer
    x = 4,976.51

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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.