Home / 9,120.15-13,682.66-3,276.81

Finding the Fourth Proportional to 9,120.15, 13,682.66 and 3,276.81

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Solution

The fourth proportional to 9,120.15, 13,682.66 and 3,276.81 is: 4,916.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.15 : 13,682.66 = 3,276.81 : x
  2. Step 2: Convert to fraction form
    9,120.15/13,682.66 = 3,276.81/x
  3. Step 3: Cross multiply
    9,120.15x = 13,682.66 × 3,276.81
  4. Step 4: Simplify right side
    9,120.15x = 44,835,477.11
  5. Step 5: Solve for x
    x = 44,835,477.11/9,120.15
  6. Step 6: Final answer
    x = 4,916.09

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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.