Home / 14,917.20-22,380.60-9,992.40

Finding the Fourth Proportional to 14,917.20, 22,380.60 and 9,992.40

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Solution

The fourth proportional to 14,917.20, 22,380.60 and 9,992.40 is: 14,991.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,917.20 : 22,380.60 = 9,992.40 : x
  2. Step 2: Convert to fraction form
    14,917.20/22,380.60 = 9,992.40/x
  3. Step 3: Cross multiply
    14,917.20x = 22,380.60 × 9,992.40
  4. Step 4: Simplify right side
    14,917.20x = 223,635,907.44
  5. Step 5: Solve for x
    x = 223,635,907.44/14,917.20
  6. Step 6: Final answer
    x = 14,991.82

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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.