Home / 11,566.80-15,954.60-8,168.80

Finding the Fourth Proportional to 11,566.80, 15,954.60 and 8,168.80

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Solution

The fourth proportional to 11,566.80, 15,954.60 and 8,168.80 is: 11,267.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,566.80 : 15,954.60 = 8,168.80 : x
  2. Step 2: Convert to fraction form
    11,566.80/15,954.60 = 8,168.80/x
  3. Step 3: Cross multiply
    11,566.80x = 15,954.60 × 8,168.80
  4. Step 4: Simplify right side
    11,566.80x = 130,329,936.48
  5. Step 5: Solve for x
    x = 130,329,936.48/11,566.80
  6. Step 6: Final answer
    x = 11,267.59

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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.