Home / 8,928.47-13,391.62-2,355.15

Finding the Fourth Proportional to 8,928.47, 13,391.62 and 2,355.15

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Solution

The fourth proportional to 8,928.47, 13,391.62 and 2,355.15 is: 3,532.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.47 : 13,391.62 = 2,355.15 : x
  2. Step 2: Convert to fraction form
    8,928.47/13,391.62 = 2,355.15/x
  3. Step 3: Cross multiply
    8,928.47x = 13,391.62 × 2,355.15
  4. Step 4: Simplify right side
    8,928.47x = 31,539,217.74
  5. Step 5: Solve for x
    x = 31,539,217.74/8,928.47
  6. Step 6: Final answer
    x = 3,532.43

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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.