Home / 14,621.25-20,177.30-7,906.86

Finding the Fourth Proportional to 14,621.25, 20,177.30 and 7,906.86

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Solution

The fourth proportional to 14,621.25, 20,177.30 and 7,906.86 is: 10,911.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,621.25 : 20,177.30 = 7,906.86 : x
  2. Step 2: Convert to fraction form
    14,621.25/20,177.30 = 7,906.86/x
  3. Step 3: Cross multiply
    14,621.25x = 20,177.30 × 7,906.86
  4. Step 4: Simplify right side
    14,621.25x = 159,539,086.28
  5. Step 5: Solve for x
    x = 159,539,086.28/14,621.25
  6. Step 6: Final answer
    x = 10,911.45

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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.