Home / 7,415.66-11,123.16-2,150.56

Finding the Fourth Proportional to 7,415.66, 11,123.16 and 2,150.56

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Solution

The fourth proportional to 7,415.66, 11,123.16 and 2,150.56 is: 3,225.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.66 : 11,123.16 = 2,150.56 : x
  2. Step 2: Convert to fraction form
    7,415.66/11,123.16 = 2,150.56/x
  3. Step 3: Cross multiply
    7,415.66x = 11,123.16 × 2,150.56
  4. Step 4: Simplify right side
    7,415.66x = 23,921,022.97
  5. Step 5: Solve for x
    x = 23,921,022.97/7,415.66
  6. Step 6: Final answer
    x = 3,225.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.