Home / 8,740.12-13,109.94-2,166.28

Finding the Fourth Proportional to 8,740.12, 13,109.94 and 2,166.28

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Solution

The fourth proportional to 8,740.12, 13,109.94 and 2,166.28 is: 3,249.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.12 : 13,109.94 = 2,166.28 : x
  2. Step 2: Convert to fraction form
    8,740.12/13,109.94 = 2,166.28/x
  3. Step 3: Cross multiply
    8,740.12x = 13,109.94 × 2,166.28
  4. Step 4: Simplify right side
    8,740.12x = 28,399,800.82
  5. Step 5: Solve for x
    x = 28,399,800.82/8,740.12
  6. Step 6: Final answer
    x = 3,249.36

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1.5x scale

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.