Home / 11,286.46-15,559.07-7,918.83

Finding the Fourth Proportional to 11,286.46, 15,559.07 and 7,918.83

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Solution

The fourth proportional to 11,286.46, 15,559.07 and 7,918.83 is: 10,916.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.46 : 15,559.07 = 7,918.83 : x
  2. Step 2: Convert to fraction form
    11,286.46/15,559.07 = 7,918.83/x
  3. Step 3: Cross multiply
    11,286.46x = 15,559.07 × 7,918.83
  4. Step 4: Simplify right side
    11,286.46x = 123,209,650.09
  5. Step 5: Solve for x
    x = 123,209,650.09/11,286.46
  6. Step 6: Final answer
    x = 10,916.59

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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.