Home / 11,438.04-15,778.92-7,194.36

Finding the Fourth Proportional to 11,438.04, 15,778.92 and 7,194.36

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Solution

The fourth proportional to 11,438.04, 15,778.92 and 7,194.36 is: 9,924.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438.04 : 15,778.92 = 7,194.36 : x
  2. Step 2: Convert to fraction form
    11,438.04/15,778.92 = 7,194.36/x
  3. Step 3: Cross multiply
    11,438.04x = 15,778.92 × 7,194.36
  4. Step 4: Simplify right side
    11,438.04x = 113,519,230.89
  5. Step 5: Solve for x
    x = 113,519,230.89/11,438.04
  6. Step 6: Final answer
    x = 9,924.71

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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.