Home / 11,105.94-15,323.67-6,631.14

Finding the Fourth Proportional to 11,105.94, 15,323.67 and 6,631.14

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Solution

The fourth proportional to 11,105.94, 15,323.67 and 6,631.14 is: 9,149.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.94 : 15,323.67 = 6,631.14 : x
  2. Step 2: Convert to fraction form
    11,105.94/15,323.67 = 6,631.14/x
  3. Step 3: Cross multiply
    11,105.94x = 15,323.67 × 6,631.14
  4. Step 4: Simplify right side
    11,105.94x = 101,613,401.08
  5. Step 5: Solve for x
    x = 101,613,401.08/11,105.94
  6. Step 6: Final answer
    x = 9,149.46

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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.