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Finding the Fourth Proportional to 18,195.66, 25,109.72 and 10,237.88

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Solution

The fourth proportional to 18,195.66, 25,109.72 and 10,237.88 is: 14,128.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,195.66 : 25,109.72 = 10,237.88 : x
  2. Step 2: Convert to fraction form
    18,195.66/25,109.72 = 10,237.88/x
  3. Step 3: Cross multiply
    18,195.66x = 25,109.72 × 10,237.88
  4. Step 4: Simplify right side
    18,195.66x = 257,070,300.19
  5. Step 5: Solve for x
    x = 257,070,300.19/18,195.66
  6. Step 6: Final answer
    x = 14,128.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.