Home / 8,936.66-12,332.58-5,399.21

Finding the Fourth Proportional to 8,936.66, 12,332.58 and 5,399.21

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Solution

The fourth proportional to 8,936.66, 12,332.58 and 5,399.21 is: 7,450.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.66 : 12,332.58 = 5,399.21 : x
  2. Step 2: Convert to fraction form
    8,936.66/12,332.58 = 5,399.21/x
  3. Step 3: Cross multiply
    8,936.66x = 12,332.58 × 5,399.21
  4. Step 4: Simplify right side
    8,936.66x = 66,586,189.26
  5. Step 5: Solve for x
    x = 66,586,189.26/8,936.66
  6. Step 6: Final answer
    x = 7,450.90

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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.