Home / 8,694.48-13,041.72-2,120.66

Finding the Fourth Proportional to 8,694.48, 13,041.72 and 2,120.66

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Solution

The fourth proportional to 8,694.48, 13,041.72 and 2,120.66 is: 3,180.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694.48 : 13,041.72 = 2,120.66 : x
  2. Step 2: Convert to fraction form
    8,694.48/13,041.72 = 2,120.66/x
  3. Step 3: Cross multiply
    8,694.48x = 13,041.72 × 2,120.66
  4. Step 4: Simplify right side
    8,694.48x = 27,657,053.94
  5. Step 5: Solve for x
    x = 27,657,053.94/8,694.48
  6. Step 6: Final answer
    x = 3,180.99

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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.