Home / 11,330.56-15,629.24-6,728.21

Finding the Fourth Proportional to 11,330.56, 15,629.24 and 6,728.21

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Solution

The fourth proportional to 11,330.56, 15,629.24 and 6,728.21 is: 9,280.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,330.56 : 15,629.24 = 6,728.21 : x
  2. Step 2: Convert to fraction form
    11,330.56/15,629.24 = 6,728.21/x
  3. Step 3: Cross multiply
    11,330.56x = 15,629.24 × 6,728.21
  4. Step 4: Simplify right side
    11,330.56x = 105,156,775.22
  5. Step 5: Solve for x
    x = 105,156,775.22/11,330.56
  6. Step 6: Final answer
    x = 9,280.81

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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.