Home / 9,147.28-13,724.89-3,228.40

Finding the Fourth Proportional to 9,147.28, 13,724.89 and 3,228.40

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Solution

The fourth proportional to 9,147.28, 13,724.89 and 3,228.40 is: 4,844.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.28 : 13,724.89 = 3,228.40 : x
  2. Step 2: Convert to fraction form
    9,147.28/13,724.89 = 3,228.40/x
  3. Step 3: Cross multiply
    9,147.28x = 13,724.89 × 3,228.40
  4. Step 4: Simplify right side
    9,147.28x = 44,309,434.88
  5. Step 5: Solve for x
    x = 44,309,434.88/9,147.28
  6. Step 6: Final answer
    x = 4,844.00

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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.