Home / 13,610.49-20,397.50-5,705.70

Finding the Fourth Proportional to 13,610.49, 20,397.50 and 5,705.70

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Solution

The fourth proportional to 13,610.49, 20,397.50 and 5,705.70 is: 8,550.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.49 : 20,397.50 = 5,705.70 : x
  2. Step 2: Convert to fraction form
    13,610.49/20,397.50 = 5,705.70/x
  3. Step 3: Cross multiply
    13,610.49x = 20,397.50 × 5,705.70
  4. Step 4: Simplify right side
    13,610.49x = 116,382,015.75
  5. Step 5: Solve for x
    x = 116,382,015.75/13,610.49
  6. Step 6: Final answer
    x = 8,550.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.