Home / 8,821.37-13,228.07-6,345.81

Finding the Fourth Proportional to 8,821.37, 13,228.07 and 6,345.81

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Solution

The fourth proportional to 8,821.37, 13,228.07 and 6,345.81 is: 9,515.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.37 : 13,228.07 = 6,345.81 : x
  2. Step 2: Convert to fraction form
    8,821.37/13,228.07 = 6,345.81/x
  3. Step 3: Cross multiply
    8,821.37x = 13,228.07 × 6,345.81
  4. Step 4: Simplify right side
    8,821.37x = 83,942,787.16
  5. Step 5: Solve for x
    x = 83,942,787.16/8,821.37
  6. Step 6: Final answer
    x = 9,515.85

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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.