Home / 13,149.81-19,724.76-3,289.10

Finding the Fourth Proportional to 13,149.81, 19,724.76 and 3,289.10

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Solution

The fourth proportional to 13,149.81, 19,724.76 and 3,289.10 is: 4,933.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149.81 : 19,724.76 = 3,289.10 : x
  2. Step 2: Convert to fraction form
    13,149.81/19,724.76 = 3,289.10/x
  3. Step 3: Cross multiply
    13,149.81x = 19,724.76 × 3,289.10
  4. Step 4: Simplify right side
    13,149.81x = 64,876,708.12
  5. Step 5: Solve for x
    x = 64,876,708.12/13,149.81
  6. Step 6: Final answer
    x = 4,933.66

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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.