Home / 13,755.93-18,983.64-7,706.43

Finding the Fourth Proportional to 13,755.93, 18,983.64 and 7,706.43

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Solution

The fourth proportional to 13,755.93, 18,983.64 and 7,706.43 is: 10,635.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.93 : 18,983.64 = 7,706.43 : x
  2. Step 2: Convert to fraction form
    13,755.93/18,983.64 = 7,706.43/x
  3. Step 3: Cross multiply
    13,755.93x = 18,983.64 × 7,706.43
  4. Step 4: Simplify right side
    13,755.93x = 146,296,016.45
  5. Step 5: Solve for x
    x = 146,296,016.45/13,755.93
  6. Step 6: Final answer
    x = 10,635.13

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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.