Home / 13,708.24-18,917.55-8,047.25

Finding the Fourth Proportional to 13,708.24, 18,917.55 and 8,047.25

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Solution

The fourth proportional to 13,708.24, 18,917.55 and 8,047.25 is: 11,105.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.24 : 18,917.55 = 8,047.25 : x
  2. Step 2: Convert to fraction form
    13,708.24/18,917.55 = 8,047.25/x
  3. Step 3: Cross multiply
    13,708.24x = 18,917.55 × 8,047.25
  4. Step 4: Simplify right side
    13,708.24x = 152,234,230.59
  5. Step 5: Solve for x
    x = 152,234,230.59/13,708.24
  6. Step 6: Final answer
    x = 11,105.31

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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.