Home / 8,928.68-13,392.49-2,688.54

Finding the Fourth Proportional to 8,928.68, 13,392.49 and 2,688.54

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Solution

The fourth proportional to 8,928.68, 13,392.49 and 2,688.54 is: 4,032.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.68 : 13,392.49 = 2,688.54 : x
  2. Step 2: Convert to fraction form
    8,928.68/13,392.49 = 2,688.54/x
  3. Step 3: Cross multiply
    8,928.68x = 13,392.49 × 2,688.54
  4. Step 4: Simplify right side
    8,928.68x = 36,006,268.50
  5. Step 5: Solve for x
    x = 36,006,268.50/8,928.68
  6. Step 6: Final answer
    x = 4,032.65

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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.