Home / 8,757.14-13,140.72-3,209.75

Finding the Fourth Proportional to 8,757.14, 13,140.72 and 3,209.75

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Solution

The fourth proportional to 8,757.14, 13,140.72 and 3,209.75 is: 4,816.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.14 : 13,140.72 = 3,209.75 : x
  2. Step 2: Convert to fraction form
    8,757.14/13,140.72 = 3,209.75/x
  3. Step 3: Cross multiply
    8,757.14x = 13,140.72 × 3,209.75
  4. Step 4: Simplify right side
    8,757.14x = 42,178,426.02
  5. Step 5: Solve for x
    x = 42,178,426.02/8,757.14
  6. Step 6: Final answer
    x = 4,816.46

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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.