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Finding the Fourth Proportional to 18,585.08, 25,668.71 and 12,240.05

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Solution

The fourth proportional to 18,585.08, 25,668.71 and 12,240.05 is: 16,905.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,585.08 : 25,668.71 = 12,240.05 : x
  2. Step 2: Convert to fraction form
    18,585.08/25,668.71 = 12,240.05/x
  3. Step 3: Cross multiply
    18,585.08x = 25,668.71 × 12,240.05
  4. Step 4: Simplify right side
    18,585.08x = 314,186,246.45
  5. Step 5: Solve for x
    x = 314,186,246.45/18,585.08
  6. Step 6: Final answer
    x = 16,905.29

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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.