Home / 15,777.91-23,659.98-8,380.59

Finding the Fourth Proportional to 15,777.91, 23,659.98 and 8,380.59

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Solution

The fourth proportional to 15,777.91, 23,659.98 and 8,380.59 is: 12,567.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,777.91 : 23,659.98 = 8,380.59 : x
  2. Step 2: Convert to fraction form
    15,777.91/23,659.98 = 8,380.59/x
  3. Step 3: Cross multiply
    15,777.91x = 23,659.98 × 8,380.59
  4. Step 4: Simplify right side
    15,777.91x = 198,284,591.79
  5. Step 5: Solve for x
    x = 198,284,591.79/15,777.91
  6. Step 6: Final answer
    x = 12,567.23

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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.