Home / 14,577.40-20,121.78-8,608.60

Finding the Fourth Proportional to 14,577.40, 20,121.78 and 8,608.60

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Solution

The fourth proportional to 14,577.40, 20,121.78 and 8,608.60 is: 11,882.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,577.40 : 20,121.78 = 8,608.60 : x
  2. Step 2: Convert to fraction form
    14,577.40/20,121.78 = 8,608.60/x
  3. Step 3: Cross multiply
    14,577.40x = 20,121.78 × 8,608.60
  4. Step 4: Simplify right side
    14,577.40x = 173,220,355.31
  5. Step 5: Solve for x
    x = 173,220,355.31/14,577.40
  6. Step 6: Final answer
    x = 11,882.80

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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.