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Finding the Fourth Proportional to 18,750.16, 28,122 and 6,268.96

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Solution

The fourth proportional to 18,750.16, 28,122 and 6,268.96 is: 9,402.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.16 : 28,122 = 6,268.96 : x
  2. Step 2: Convert to fraction form
    18,750.16/28,122 = 6,268.96/x
  3. Step 3: Cross multiply
    18,750.16x = 28,122 × 6,268.96
  4. Step 4: Simplify right side
    18,750.16x = 176,295,693.12
  5. Step 5: Solve for x
    x = 176,295,693.12/18,750.16
  6. Step 6: Final answer
    x = 9,402.36

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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.