Home / 13,344.76-18,416.94-7,757.56

Finding the Fourth Proportional to 13,344.76, 18,416.94 and 7,757.56

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Solution

The fourth proportional to 13,344.76, 18,416.94 and 7,757.56 is: 10,706.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.76 : 18,416.94 = 7,757.56 : x
  2. Step 2: Convert to fraction form
    13,344.76/18,416.94 = 7,757.56/x
  3. Step 3: Cross multiply
    13,344.76x = 18,416.94 × 7,757.56
  4. Step 4: Simplify right side
    13,344.76x = 142,870,517.07
  5. Step 5: Solve for x
    x = 142,870,517.07/13,344.76
  6. Step 6: Final answer
    x = 10,706.11

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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.