Home / 10,299.22-15,450.05-7,718.56

Finding the Fourth Proportional to 10,299.22, 15,450.05 and 7,718.56

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Solution

The fourth proportional to 10,299.22, 15,450.05 and 7,718.56 is: 11,578.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,299.22 : 15,450.05 = 7,718.56 : x
  2. Step 2: Convert to fraction form
    10,299.22/15,450.05 = 7,718.56/x
  3. Step 3: Cross multiply
    10,299.22x = 15,450.05 × 7,718.56
  4. Step 4: Simplify right side
    10,299.22x = 119,252,137.93
  5. Step 5: Solve for x
    x = 119,252,137.93/10,299.22
  6. Step 6: Final answer
    x = 11,578.75

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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.