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Finding the Fourth Proportional to 18,113, 27,169.41 and 10,999.04

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Solution

The fourth proportional to 18,113, 27,169.41 and 10,999.04 is: 16,498.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,113 : 27,169.41 = 10,999.04 : x
  2. Step 2: Convert to fraction form
    18,113/27,169.41 = 10,999.04/x
  3. Step 3: Cross multiply
    18,113x = 27,169.41 × 10,999.04
  4. Step 4: Simplify right side
    18,113x = 298,837,427.37
  5. Step 5: Solve for x
    x = 298,837,427.37/18,113
  6. Step 6: Final answer
    x = 16,498.51

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Half scale
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Double scale
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Similar ratio
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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.