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Finding the Fourth Proportional to 8,353.45, 12,513.15 and 3,957.58

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Solution

The fourth proportional to 8,353.45, 12,513.15 and 3,957.58 is: 5,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.45 : 12,513.15 = 3,957.58 : x
  2. Step 2: Convert to fraction form
    8,353.45/12,513.15 = 3,957.58/x
  3. Step 3: Cross multiply
    8,353.45x = 12,513.15 × 3,957.58
  4. Step 4: Simplify right side
    8,353.45x = 49,521,792.18
  5. Step 5: Solve for x
    x = 49,521,792.18/8,353.45
  6. Step 6: Final answer
    x = 5,928.30

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1.5x scale

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.