Home / 8,068.22-11,129.31-5,078.87

Finding the Fourth Proportional to 8,068.22, 11,129.31 and 5,078.87

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Solution

The fourth proportional to 8,068.22, 11,129.31 and 5,078.87 is: 7,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,068.22 : 11,129.31 = 5,078.87 : x
  2. Step 2: Convert to fraction form
    8,068.22/11,129.31 = 5,078.87/x
  3. Step 3: Cross multiply
    8,068.22x = 11,129.31 × 5,078.87
  4. Step 4: Simplify right side
    8,068.22x = 56,524,263.03
  5. Step 5: Solve for x
    x = 56,524,263.03/8,068.22
  6. Step 6: Final answer
    x = 7,005.80

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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.