Home / 11,190.13-15,449.96-6,942.92

Finding the Fourth Proportional to 11,190.13, 15,449.96 and 6,942.92

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Solution

The fourth proportional to 11,190.13, 15,449.96 and 6,942.92 is: 9,585.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.13 : 15,449.96 = 6,942.92 : x
  2. Step 2: Convert to fraction form
    11,190.13/15,449.96 = 6,942.92/x
  3. Step 3: Cross multiply
    11,190.13x = 15,449.96 × 6,942.92
  4. Step 4: Simplify right side
    11,190.13x = 107,267,737.34
  5. Step 5: Solve for x
    x = 107,267,737.34/11,190.13
  6. Step 6: Final answer
    x = 9,585.92

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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.