Home / 13,706.38-18,914.69-7,739.22

Finding the Fourth Proportional to 13,706.38, 18,914.69 and 7,739.22

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Solution

The fourth proportional to 13,706.38, 18,914.69 and 7,739.22 is: 10,680.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,706.38 : 18,914.69 = 7,739.22 : x
  2. Step 2: Convert to fraction form
    13,706.38/18,914.69 = 7,739.22/x
  3. Step 3: Cross multiply
    13,706.38x = 18,914.69 × 7,739.22
  4. Step 4: Simplify right side
    13,706.38x = 146,384,966.49
  5. Step 5: Solve for x
    x = 146,384,966.49/13,706.38
  6. Step 6: Final answer
    x = 10,680.06

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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.