Home / 9,120.87-13,681.31-3,273.28

Finding the Fourth Proportional to 9,120.87, 13,681.31 and 3,273.28

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Solution

The fourth proportional to 9,120.87, 13,681.31 and 3,273.28 is: 4,909.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.87 : 13,681.31 = 3,273.28 : x
  2. Step 2: Convert to fraction form
    9,120.87/13,681.31 = 3,273.28/x
  3. Step 3: Cross multiply
    9,120.87x = 13,681.31 × 3,273.28
  4. Step 4: Simplify right side
    9,120.87x = 44,782,707.83
  5. Step 5: Solve for x
    x = 44,782,707.83/9,120.87
  6. Step 6: Final answer
    x = 4,909.92

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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.