Home / 8,950.55-13,428.05-3,107.21

Finding the Fourth Proportional to 8,950.55, 13,428.05 and 3,107.21

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Solution

The fourth proportional to 8,950.55, 13,428.05 and 3,107.21 is: 4,661.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.55 : 13,428.05 = 3,107.21 : x
  2. Step 2: Convert to fraction form
    8,950.55/13,428.05 = 3,107.21/x
  3. Step 3: Cross multiply
    8,950.55x = 13,428.05 × 3,107.21
  4. Step 4: Simplify right side
    8,950.55x = 41,723,688.56
  5. Step 5: Solve for x
    x = 41,723,688.56/8,950.55
  6. Step 6: Final answer
    x = 4,661.58

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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.