Home / 11,331.73-15,640.02-7,240.91

Finding the Fourth Proportional to 11,331.73, 15,640.02 and 7,240.91

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Solution

The fourth proportional to 11,331.73, 15,640.02 and 7,240.91 is: 9,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.73 : 15,640.02 = 7,240.91 : x
  2. Step 2: Convert to fraction form
    11,331.73/15,640.02 = 7,240.91/x
  3. Step 3: Cross multiply
    11,331.73x = 15,640.02 × 7,240.91
  4. Step 4: Simplify right side
    11,331.73x = 113,247,977.22
  5. Step 5: Solve for x
    x = 113,247,977.22/11,331.73
  6. Step 6: Final answer
    x = 9,993.88

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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.