Home / 8,362.60-12,544.32-2,815.72

Finding the Fourth Proportional to 8,362.60, 12,544.32 and 2,815.72

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Solution

The fourth proportional to 8,362.60, 12,544.32 and 2,815.72 is: 4,223.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,362.60 : 12,544.32 = 2,815.72 : x
  2. Step 2: Convert to fraction form
    8,362.60/12,544.32 = 2,815.72/x
  3. Step 3: Cross multiply
    8,362.60x = 12,544.32 × 2,815.72
  4. Step 4: Simplify right side
    8,362.60x = 35,321,292.71
  5. Step 5: Solve for x
    x = 35,321,292.71/8,362.60
  6. Step 6: Final answer
    x = 4,223.72

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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.