Home / 8,639.33-12,957.97-5,083.58

Finding the Fourth Proportional to 8,639.33, 12,957.97 and 5,083.58

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Solution

The fourth proportional to 8,639.33, 12,957.97 and 5,083.58 is: 7,624.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639.33 : 12,957.97 = 5,083.58 : x
  2. Step 2: Convert to fraction form
    8,639.33/12,957.97 = 5,083.58/x
  3. Step 3: Cross multiply
    8,639.33x = 12,957.97 × 5,083.58
  4. Step 4: Simplify right side
    8,639.33x = 65,872,877.13
  5. Step 5: Solve for x
    x = 65,872,877.13/8,639.33
  6. Step 6: Final answer
    x = 7,624.77

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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.