Home / 12,861.11-19,286.57-4,959.23

Finding the Fourth Proportional to 12,861.11, 19,286.57 and 4,959.23

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Solution

The fourth proportional to 12,861.11, 19,286.57 and 4,959.23 is: 7,436.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861.11 : 19,286.57 = 4,959.23 : x
  2. Step 2: Convert to fraction form
    12,861.11/19,286.57 = 4,959.23/x
  3. Step 3: Cross multiply
    12,861.11x = 19,286.57 × 4,959.23
  4. Step 4: Simplify right side
    12,861.11x = 95,646,452.51
  5. Step 5: Solve for x
    x = 95,646,452.51/12,861.11
  6. Step 6: Final answer
    x = 7,436.87

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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.