Home / 11,107.41-15,321.18-8,448.99

Finding the Fourth Proportional to 11,107.41, 15,321.18 and 8,448.99

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Solution

The fourth proportional to 11,107.41, 15,321.18 and 8,448.99 is: 11,654.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.41 : 15,321.18 = 8,448.99 : x
  2. Step 2: Convert to fraction form
    11,107.41/15,321.18 = 8,448.99/x
  3. Step 3: Cross multiply
    11,107.41x = 15,321.18 × 8,448.99
  4. Step 4: Simplify right side
    11,107.41x = 129,448,496.61
  5. Step 5: Solve for x
    x = 129,448,496.61/11,107.41
  6. Step 6: Final answer
    x = 11,654.25

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Half scale
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Double scale
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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.