Home / 13,283.80-19,901.40-8,083.60

Finding the Fourth Proportional to 13,283.80, 19,901.40 and 8,083.60

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Solution

The fourth proportional to 13,283.80, 19,901.40 and 8,083.60 is: 12,110.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.80 : 19,901.40 = 8,083.60 : x
  2. Step 2: Convert to fraction form
    13,283.80/19,901.40 = 8,083.60/x
  3. Step 3: Cross multiply
    13,283.80x = 19,901.40 × 8,083.60
  4. Step 4: Simplify right side
    13,283.80x = 160,874,957.04
  5. Step 5: Solve for x
    x = 160,874,957.04/13,283.80
  6. Step 6: Final answer
    x = 12,110.61

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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.