Home / 8,518.19-11,751.35-5,682.87

Finding the Fourth Proportional to 8,518.19, 11,751.35 and 5,682.87

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Solution

The fourth proportional to 8,518.19, 11,751.35 and 5,682.87 is: 7,839.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.19 : 11,751.35 = 5,682.87 : x
  2. Step 2: Convert to fraction form
    8,518.19/11,751.35 = 5,682.87/x
  3. Step 3: Cross multiply
    8,518.19x = 11,751.35 × 5,682.87
  4. Step 4: Simplify right side
    8,518.19x = 66,781,365.96
  5. Step 5: Solve for x
    x = 66,781,365.96/8,518.19
  6. Step 6: Final answer
    x = 7,839.86

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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.