Home / 8,243.46-11,376.81-4,707.21

Finding the Fourth Proportional to 8,243.46, 11,376.81 and 4,707.21

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Solution

The fourth proportional to 8,243.46, 11,376.81 and 4,707.21 is: 6,496.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,243.46 : 11,376.81 = 4,707.21 : x
  2. Step 2: Convert to fraction form
    8,243.46/11,376.81 = 4,707.21/x
  3. Step 3: Cross multiply
    8,243.46x = 11,376.81 × 4,707.21
  4. Step 4: Simplify right side
    8,243.46x = 53,553,033.80
  5. Step 5: Solve for x
    x = 53,553,033.80/8,243.46
  6. Step 6: Final answer
    x = 6,496.43

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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.