Home / 15,942.54-21,999.60-8,868.18

Finding the Fourth Proportional to 15,942.54, 21,999.60 and 8,868.18

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Solution

The fourth proportional to 15,942.54, 21,999.60 and 8,868.18 is: 12,237.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,942.54 : 21,999.60 = 8,868.18 : x
  2. Step 2: Convert to fraction form
    15,942.54/21,999.60 = 8,868.18/x
  3. Step 3: Cross multiply
    15,942.54x = 21,999.60 × 8,868.18
  4. Step 4: Simplify right side
    15,942.54x = 195,096,412.73
  5. Step 5: Solve for x
    x = 195,096,412.73/15,942.54
  6. Step 6: Final answer
    x = 12,237.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.