Home / 11,179.77-15,425.06-7,199.43

Finding the Fourth Proportional to 11,179.77, 15,425.06 and 7,199.43

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Solution

The fourth proportional to 11,179.77, 15,425.06 and 7,199.43 is: 9,933.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.77 : 15,425.06 = 7,199.43 : x
  2. Step 2: Convert to fraction form
    11,179.77/15,425.06 = 7,199.43/x
  3. Step 3: Cross multiply
    11,179.77x = 15,425.06 × 7,199.43
  4. Step 4: Simplify right side
    11,179.77x = 111,051,639.72
  5. Step 5: Solve for x
    x = 111,051,639.72/11,179.77
  6. Step 6: Final answer
    x = 9,933.27

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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.