Home / 8,688.92-13,032.73-2,765.57

Finding the Fourth Proportional to 8,688.92, 13,032.73 and 2,765.57

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Solution

The fourth proportional to 8,688.92, 13,032.73 and 2,765.57 is: 4,148.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.92 : 13,032.73 = 2,765.57 : x
  2. Step 2: Convert to fraction form
    8,688.92/13,032.73 = 2,765.57/x
  3. Step 3: Cross multiply
    8,688.92x = 13,032.73 × 2,765.57
  4. Step 4: Simplify right side
    8,688.92x = 36,042,927.11
  5. Step 5: Solve for x
    x = 36,042,927.11/8,688.92
  6. Step 6: Final answer
    x = 4,148.15

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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.