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Finding the Fourth Proportional to 8,750.28, 13,125.49 and 3,203.81

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Solution

The fourth proportional to 8,750.28, 13,125.49 and 3,203.81 is: 4,805.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.28 : 13,125.49 = 3,203.81 : x
  2. Step 2: Convert to fraction form
    8,750.28/13,125.49 = 3,203.81/x
  3. Step 3: Cross multiply
    8,750.28x = 13,125.49 × 3,203.81
  4. Step 4: Simplify right side
    8,750.28x = 42,051,576.12
  5. Step 5: Solve for x
    x = 42,051,576.12/8,750.28
  6. Step 6: Final answer
    x = 4,805.74

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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.