Home / 11,109.42-15,323.85-6,629.73

Finding the Fourth Proportional to 11,109.42, 15,323.85 and 6,629.73

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Solution

The fourth proportional to 11,109.42, 15,323.85 and 6,629.73 is: 9,144.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.42 : 15,323.85 = 6,629.73 : x
  2. Step 2: Convert to fraction form
    11,109.42/15,323.85 = 6,629.73/x
  3. Step 3: Cross multiply
    11,109.42x = 15,323.85 × 6,629.73
  4. Step 4: Simplify right side
    11,109.42x = 101,592,988.06
  5. Step 5: Solve for x
    x = 101,592,988.06/11,109.42
  6. Step 6: Final answer
    x = 9,144.76

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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.